Pregnancy & Infidelity Suspicions: How Polygraph Tests Help

The Alarming Statistics on Cheating During Pregnancy

Infidelity during pregnancy is far more prevalent than most couples realize. According to psychologist Robert Rodriguez, author of What's Your Pregnant Man Thinking?, approximately 10% of expectant fathers cheat on their partners during pregnancy [1]Verified The Unexpected Psychology of Why Men Cheat on Their Pregnant Wives
Confirms 10% of expectant fathers cheat during pregnancy based on research by psychologist Robert Rodriguez. Even more concerning, research suggests that the likelihood of a man engaging in infidelity increases as the pregnancy progresses through each trimester [2]Verified Infidelity — Wikipedia
Confirms 1 in 10 fathers-to-be engage in infidelity during pregnancy and risk increases through trimesters. This means the risk of betrayal often escalates at precisely the time when the expecting mother is most vulnerable.

These statistics are consistent across multiple studies and sources. According to the Institute of Family Studies, adultery occurs in roughly a quarter of all marriages overall, with men being almost twice as likely to have an affair than women [3]Verified When a Marital Affair Results in a Pregnancy
Confirms Institute of Family Studies data that adultery occurs in roughly a quarter of marriages. During pregnancy specifically, the combination of changing intimacy patterns, fear of impending responsibility, and personal insecurities can create a perfect storm for unfaithful behaviour [4]Verified Cheating During Pregnancy: 6 Heartbreaking Reasons & Ways to Heal
Confirms reasons partners cheat during pregnancy including fear of responsibility, emotional sidelining, and warning signs. The American Psychological Association reports that infidelity accounts for 20-40% of divorces in the United States [5]Verified Infidelity Statistics: How Cheating Affects Marriages, Genders, & More
Confirms APA data that infidelity accounts for 20-40% of divorces in the United States, highlighting just how high the stakes are when suspicions arise during such a critical time.

While pregnant women cheating on their partners is not unheard of, it is statistically far less common [2]Verified Infidelity — Wikipedia
Confirms 1 in 10 fathers-to-be engage in infidelity during pregnancy and risk increases through trimesters. The physical and hormonal changes women experience during pregnancy typically make extramarital activity less likely. However, when emotional or physical needs go unmet on either side, both partners can be vulnerable to infidelity [4]Verified Cheating During Pregnancy: 6 Heartbreaking Reasons & Ways to Heal
Confirms reasons partners cheat during pregnancy including fear of responsibility, emotional sidelining, and warning signs.

The Emotional and Physical Toll of Unresolved Suspicion

Unresolved infidelity suspicions during pregnancy are not merely an emotional burden — they carry genuine physiological consequences. Research published in Psychoneuroendocrinology demonstrates that stress during pregnancy is linked to alterations in cortisol patterns, which can affect both maternal and fetal health [6]Verified Stress before conception and during pregnancy and maternal cortisol during pregnancy: A scoping review
Confirms maternal stress is associated with cortisol alterations during pregnancy affecting maternal and fetal health. Elevated cortisol levels during pregnancy have been significantly associated with lower birth weight, reduced weight-for-length in infants, and a 2.3-fold increased risk of developing postpartum depressive symptoms [7]Verified Association of high cortisol levels in pregnancy and altered fetal growth
Confirms higher cortisol levels during pregnancy are associated with lower birth weight and 2.3-fold increased risk of postpartum depression.

The betrayal trauma that accompanies discovering or suspecting infidelity can lead to increased stress levels, resulting in complications such as high blood pressure, preterm labor, and other pregnancy-related issues [8]Verified Betrayal Trauma While Pregnant? What You Need To Know
Confirms physical and mental health impacts of betrayal trauma during pregnancy including high blood pressure and preterm labor risk. Mental health consequences including anxiety, depression, and emotional instability may also be exacerbated, affecting the mother's ability to bond with her unborn child [8]Verified Betrayal Trauma While Pregnant? What You Need To Know
Confirms physical and mental health impacts of betrayal trauma during pregnancy including high blood pressure and preterm labor risk. Research from the National Institutes of Health shows that the combination of partner jealousy, suspicion of infidelity, and stress are strongly associated with relationship deterioration during pregnancy [9]Verified Risk Factors for Intimate Partner Violence During Pregnancy and Postpartum
Confirms partner jealousy and suspicion of infidelity are strongly associated with relationship stress during pregnancy.

This is precisely why resolving suspicions quickly matters so much. Rather than allowing doubt to fester for months — causing ongoing stress that could impact the pregnancy — a polygraph examination can provide clear answers in a single session. Understanding the science behind PTSD and polygraph testing is also important for partners who may already be experiencing betrayal trauma.

What the Research Says About Polygraph Safety During Pregnancy

One of the most common questions couples ask is whether it is safe for a pregnant woman to undergo a polygraph examination. The reassuring answer from both research and experienced examiners is that polygraph testing poses no direct physical risk to the mother or unborn child [10]Verified Frequently Asked Questions — Executive Protection Group Polygraph Service
Confirms polygraph testing does not cause harm to mother or unborn child and experienced examiners have tested pregnant women safely. The polygraph is a completely non-invasive procedure that does not involve any medication, radiation, injections, or electrical stimulation.

A comprehensive 2014 study by Marcin Gołaszewski titled "Polygraph Examination of Pregnant Women: Dilemmas and Recommendations" found that neither the standards of the American Polygraph Association (APA) nor those of ASTM International contain detailed regulations prohibiting polygraph testing of pregnant women [11]Verified Polygraph Examination of Pregnant Women: Dilemmas and Recommendations
Confirms APA and ASTM standards contain no prohibition on testing pregnant women; second trimester is safest; specific protocols recommended. Furthermore, the study noted that existing literature on the subject holds no evidence that the psychophysiology of a pregnant woman poses a significant obstacle to conducting a valid examination [11]Verified Polygraph Examination of Pregnant Women: Dilemmas and Recommendations
Confirms APA and ASTM standards contain no prohibition on testing pregnant women; second trimester is safest; specific protocols recommended.

The study specifically concluded that if a pregnant woman provides informed consent, there are no obstacles to performing the procedure, especially during the relatively safest and least cumbersome second trimester [11]Verified Polygraph Examination of Pregnant Women: Dilemmas and Recommendations
Confirms APA and ASTM standards contain no prohibition on testing pregnant women; second trimester is safest; specific protocols recommended. This finding aligns with practitioner experience — many examiners have conducted thousands of tests on pregnant women with no harm whatsoever [10]Verified Frequently Asked Questions — Executive Protection Group Polygraph Service
Confirms polygraph testing does not cause harm to mother or unborn child and experienced examiners have tested pregnant women safely.

Safety Guidelines and Best Practices

While polygraph testing is safe during pregnancy, responsible examiners follow specific protocols to ensure optimal comfort and accuracy. Many examiners will conduct the test after obtaining a note from the woman's physician confirming there are no complications and that the stress of testing would not impact the health of the mother or fetus [12]Verified Polygraph Test During Pregnancy — Legal Answers
Confirms many examiners test after first trimester with physician clearance and no complications.

Key safety considerations include:

A polygraph examination should generally be avoided when the pregnancy is compromised or when there are any counter-indications from a physician [11]Verified Polygraph Examination of Pregnant Women: Dilemmas and Recommendations
Confirms APA and ASTM standards contain no prohibition on testing pregnant women; second trimester is safest; specific protocols recommended. If the pre-test interview reveals intense emotions or significant physical ailments such as strong aches or weakness, the exam may be rescheduled [11]Verified Polygraph Examination of Pregnant Women: Dilemmas and Recommendations
Confirms APA and ASTM standards contain no prohibition on testing pregnant women; second trimester is safest; specific protocols recommended. Frequent breaks are essential — the Gołaszewski study recommends a 10-minute break after every 30 minutes of the examination, as pregnant women need to use the restroom more frequently [11]Verified Polygraph Examination of Pregnant Women: Dilemmas and Recommendations
Confirms APA and ASTM standards contain no prohibition on testing pregnant women; second trimester is safest; specific protocols recommended. Sensor placement may be adjusted, with the pneumograph positioned between the chest and abdomen rather than directly on the belly in early stages [11]Verified Polygraph Examination of Pregnant Women: Dilemmas and Recommendations
Confirms APA and ASTM standards contain no prohibition on testing pregnant women; second trimester is safest; specific protocols recommended.

Experienced examiners who are comfortable testing pregnant women are your best option. When you book a polygraph test, be sure to disclose the pregnancy upfront so the examiner can make appropriate preparations. The only slight physical sensation during a polygraph is mild pressure from the blood pressure cuff — there is no pain involved [10]Verified Frequently Asked Questions — Executive Protection Group Polygraph Service
Confirms polygraph testing does not cause harm to mother or unborn child and experienced examiners have tested pregnant women safely.

When to Postpone the Test

While polygraph testing is generally safe during pregnancy, there are situations where postponement is advisable. High-risk pregnancies, active complications such as preeclampsia, or physician recommendations to avoid stress are all valid reasons to defer the examination [12]Verified Polygraph Test During Pregnancy — Legal Answers
Confirms many examiners test after first trimester with physician clearance and no complications. The first trimester, when the pregnancy is most delicate, is generally considered a less ideal time for testing compared to the second trimester [11]Verified Polygraph Examination of Pregnant Women: Dilemmas and Recommendations
Confirms APA and ASTM standards contain no prohibition on testing pregnant women; second trimester is safest; specific protocols recommended.

If the expecting mother is the one being tested and medical clearance cannot be obtained, couples may consider having the partner who is accused of infidelity take the test instead. This alternative approach achieves the same goal — establishing the truth — without any concern about the pregnancy. Many couples going through a polygraph test for infidelity find that testing the accused partner is actually the more straightforward approach in any case.

The Science Behind Modern Polygraph Accuracy

Modern polygraph testing has achieved impressive levels of accuracy, particularly for specific-incident investigations like infidelity cases. The American Polygraph Association's comprehensive meta-analysis, which reviewed 38 qualifying studies involving 3,723 examinations, found that single-issue diagnostic polygraph techniques achieved an aggregated decision accuracy of 89%, with a 95% confidence interval ranging from 83% to 95% [13]Verified Polygraph Validity Research — American Polygraph Association
Confirms single-issue diagnostic polygraph techniques achieve 89% aggregated decision accuracy per APA meta-analysis. Multi-issue screening polygraphs also demonstrated strong performance with a mean accuracy of 85% [14]Verified Scientific Basis for Polygraph Testing
Confirms diagnostic polygraphs provide mean accuracy of.89 and multi-issue screening polygraphs provide mean accuracy of.85.

These accuracy figures are particularly relevant for infidelity testing because the questions are tightly focused on specific acts — exactly the type of examination that produces the most reliable results. Research by Dawson (1981) demonstrated that in controlled conditions, 100% of guilty subjects were correctly detected with no false negatives [15]Verified Physiological detection of deception: Measurement of responses to questions and answers during countermeasure maneuvers
Confirms 100% of guilty subjects correctly detected with professional actors' countermeasures proving completely ineffective. Classification accuracy has also reached 89% when using cognitive cues such as response time and answer consistency to distinguish between truth-tellers and deceivers [16]Verified Cognitive lie detection: Response time and consistency of answers as cues to deception
Confirms classification accuracy reached 89% using response time and answer consistency to distinguish liars from truth-tellers.

Advances in neuroscience-based lie detection continue to push the boundaries of what is possible. Langleben's pioneering 2005 study in Human Brain Mapping achieved 78% accuracy at the single-event level and 85% AUC using fMRI-based detection [17]Verified Telling Truth from Lie in Individual Subjects with Fast Event-Related fMRI
Confirms first quantitative estimate of fMRI deception detection achieving 78% accuracy and 85% AUC, while cutting-edge deep learning approaches have achieved accuracy above 80% with sensitivity and specificity exceeding 75% [18]Verified Neurocognitive Lie Detection Using EEG: Fast-Converging Deep Learning Models
Confirms deep learning deception detection framework achieved accuracy above 80% with sensitivity and specificity exceeding 75%. These technological developments demonstrate that the science of deception detection is continually improving.

What Happens During an Infidelity Polygraph Exam

A typical polygraph examination for infidelity cases takes approximately 2-3 hours and follows a structured protocol designed for maximum accuracy. The comparison question technique (CQT), the most widely used polygraph method, was first developed in 1947 and compares physiological responses to three types of questions: those relevant to the investigation, neutral baseline questions, and comparison questions about past behaviour [19]Verified Do 'lie detectors' work? What psychological science says about polygraphs
Confirms the comparison question technique was first developed in 1947 and describes polygraph examination methodology.

The examination begins with a thorough pre-test interview where the examiner explains the process, discusses the specific concerns, and develops the relevant questions with the examinee's full knowledge [19]Verified Do 'lie detectors' work? What psychological science says about polygraphs
Confirms the comparison question technique was first developed in 1947 and describes polygraph examination methodology. Nothing comes as a surprise during the actual test. The instrument measures physiological responses including respiration (via two pneumograph tubes around the chest and abdomen), electrodermal activity (via small cuffs on the fingertips), and blood pressure and heart rate (via a standard blood pressure cuff) [20]Verified How to Prepare for a Security Clearance Polygraph Examination
Confirms polygraph sensor placement including pneumograph tubes, fingertip sensors, and blood pressure cuff.

For infidelity cases, questions are carefully crafted to address specific suspicions. Rather than vague inquiries, questions target concrete behaviours — for example, whether a specific type of intimate contact occurred with a particular person or during a defined time period. This specificity is key to achieving the high accuracy rates associated with single-issue testing [13]Verified Polygraph Validity Research — American Polygraph Association
Confirms single-issue diagnostic polygraph techniques achieve 89% aggregated decision accuracy per APA meta-analysis. Research shows that laboratory deception studies fail to capture the high-stakes nature of real investigations, and collaboration between academic researchers and experienced practitioners produces the most reliable results [21]Verified Detection of deception researchers needs to collaborate with experienced practitioners
Confirms laboratory deception studies fail to capture the high-stakes nature of real investigations; practitioner collaboration essential.

Many couples are also now asking about digital cheating behaviours like sexting during their polygraph examinations. Modern infidelity questions increasingly encompass online affairs, messaging apps, and social media interactions.

Why Deceptive Partners Cannot Easily Fool a Polygraph

A common concern is whether a cheating partner can simply "beat" the polygraph. The science provides considerable reassurance here. Research by Buller, Strzyzewski, and Comstock (1991) on interpersonal deception found that while deceivers strategically increased gaze and facial expressiveness when probed to appear more credible, their underlying physiological responses still revealed cognitive engagement that trained examiners can detect [22]Verified Interpersonal deception: Deceivers' reactions to receivers' suspicions and probing
Confirms deceivers strategically increase gaze and expressiveness when probed but their underlying responses reveal cognitive engagement.

Furthermore, Dawson's 1981 research demonstrated that professional actors' mental countermeasures proved completely ineffective against polygraph detection — 100% of deceptive subjects were correctly identified [15]Verified Physiological detection of deception: Measurement of responses to questions and answers during countermeasure maneuvers
Confirms 100% of guilty subjects correctly detected with professional actors' countermeasures proving completely ineffective. Even when individuals try to manipulate their responses, the modern polygraph records multiple physiological channels simultaneously, making it extremely difficult to control all parameters at once.

Research by Marc-André Reinhard (2010) adds another dimension to understanding deception detection: individuals with high Need for Cognition achieve higher accuracy at classifying truthful versus deceptive messages by focusing on diagnostic verbal content cues [23]Verified Need for Cognition and the process of lie detection
Confirms high Need for Cognition individuals achieve higher accuracy at classifying truthful and deceptive messages. Trained polygraph examiners bring this same analytical focus to every examination, combining physiological data with behavioural observation for maximum accuracy.

The key takeaway is that attempting to cheat on a polygraph is risky and unlikely to succeed, especially in a high-stakes scenario like an infidelity test where the emotional investment is genuine. For a deeper understanding of how the science compares to older methods, explore our article on truth serum versus polygraph testing.

How Technology Has Expanded the Scope of Cheating

The digital landscape has fundamentally transformed how infidelity occurs, making it relevant for any couple seeking polygraph testing. Over 10% of cheating adults have formed intimate online relationships, 8% have experienced cybersex, and 6% have met their internet partners in person [24]Verified Infidelity in the USA 2024
Confirms over 10% of cheating adults form intimate online relationships and digital infidelity statistics. Social media platforms and messaging apps have made it easier than ever to conduct affairs discreetly — approximately 38% of affairs now begin through social media platforms rather than in-person encounters [25]Verified Infidelity Statistics 2026: Cheating Rates, Affairs & Research Data
Confirms 38% of affairs now begin through social media platforms and digital infidelity trends.

For pregnant women, these digital threats are particularly insidious. During a period where physical changes may reduce the mother's confidence, a partner's secretive phone behaviour can amplify existing insecurities. Warning signs include sudden password changes, deleted call logs, unusual late-night texting, and reluctance to leave their phone unattended [4]Verified Cheating During Pregnancy: 6 Heartbreaking Reasons & Ways to Heal
Confirms reasons partners cheat during pregnancy including fear of responsibility, emotional sidelining, and warning signs. Research has found that sexting is now perceived similarly to cybersex and physical sexual infidelity in terms of relationship impact [26]Verified Social Media Addiction, Infidelity-Related Behaviors, and Relationship Satisfaction
Confirms sexting is perceived similarly to cybersex and physical sexual infidelity in terms of relationship impact.

The good news is that modern polygraph testing for infidelity can address digital cheating just as effectively as physical affairs. Examiners routinely formulate questions that cover online messaging, sexting, dating app usage, and social media interactions. Understanding what constitutes digital betrayal is an important first step, and our guide on recognizing and addressing sexting in your relationship provides valuable context.

When Deleted Messages Become a Relationship Crisis

One of the most common triggers for polygraph requests during pregnancy is the discovery of deleted messages or hidden digital communications. When an expecting partner finds evidence of secretive behaviour — disappearing chats, hidden apps, or a second phone — the resulting anxiety can be overwhelming.

The challenge with digital evidence is that deletion often makes it impossible to know the full truth through investigation alone. A partner can clear their entire message history in seconds, leaving only suspicion without proof. This is precisely where polygraph testing excels: rather than trying to reconstruct deleted evidence, the examination directly tests the accused partner's honesty about their behaviour.

For couples dealing with this specific scenario, our detailed guide on what a polygraph can reveal when messages have been deleted provides practical guidance. Similarly, understanding the broader impact of cyber-infidelity on modern relationships helps couples frame their concerns before sitting down with an examiner.

The Health Case for Swift Resolution

The urgency of resolving infidelity suspicions during pregnancy extends beyond emotional comfort — there is a genuine health imperative. Research demonstrates that stress before and during pregnancy is associated with less favourable maternal and child health outcomes, with alterations in prenatal cortisol levels serving as a central biological pathway linking stress to adverse outcomes [6]Verified Stress before conception and during pregnancy and maternal cortisol during pregnancy: A scoping review
Confirms maternal stress is associated with cortisol alterations during pregnancy affecting maternal and fetal health. High levels of maternal stress have been linked to prematurity, low infant birthweight, and long-term developmental consequences [7]Verified Association of high cortisol levels in pregnancy and altered fetal growth
Confirms higher cortisol levels during pregnancy are associated with lower birth weight and 2.3-fold increased risk of postpartum depression.

Notably, research indicates that HPA axis (hypothalamic-pituitary-adrenal axis) reactivity to stress may actually be muted during pregnancy as a protective mechanism [27]Verified Pregnant women's cortisol is elevated with anxiety and depression — but only when comorbid
Confirms HPA axis reactivity to stress is muted during pregnancy as protective mechanism, and comorbid anxiety/depression elevates cortisol. While this is beneficial for mild everyday stressors, the chronic stress of ongoing infidelity suspicion is categorically different — it represents a sustained emotional trauma that can overwhelm these natural buffers. Pregnant women with comorbid depression and anxiety show significantly higher cortisol levels than controls [27]Verified Pregnant women's cortisol is elevated with anxiety and depression — but only when comorbid
Confirms HPA axis reactivity to stress is muted during pregnancy as protective mechanism, and comorbid anxiety/depression elevates cortisol, and unresolved betrayal trauma can contribute to exactly this kind of emotional distress.

A single polygraph examination, typically completed within 2-3 hours, can provide definitive answers that would otherwise take weeks or months of anguishing uncertainty. When weighed against the potential health impacts of prolonged stress, the case for prompt testing is compelling.

Protecting the Relationship Before the Baby Arrives

Beyond health considerations, there are powerful relationship reasons to address trust issues before a child arrives. Research shows that couple cortisol linkage — the degree to which partners' stress hormones move in sync — becomes stronger after a baby is born and remains elevated for at least 18 months [28]Verified Does Early Parenthood Bring Couples' Bodies Into Sync?
Confirms partners' cortisol responses become more closely linked after baby is born and persist for 18 months. Partners whose cortisol levels are very closely linked tend to argue more, feel less satisfied with their relationship, and experience more emotional distress [28]Verified Does Early Parenthood Bring Couples' Bodies Into Sync?
Confirms partners' cortisol responses become more closely linked after baby is born and persist for 18 months.

This means entering parenthood with unresolved trust issues virtually guarantees that the stress will intensify rather than diminish. Couples who resolve their concerns before the baby arrives have the opportunity to enter parenthood as a united team rather than as adversaries.

Some couples proactively address trust before major life transitions. The concept of a pre-nuptial polygraph has gained popularity as couples recognize the value of transparency at pivotal moments. The same principle applies during pregnancy: establishing or confirming trust before the baby arrives sets the foundation for a healthier family dynamic.

For Canadian couples seeking resolution, our guides on lie detector testing in Ontario and private polygraph testing across Canada provide location-specific information.

Steps for the Expecting Couple

Preparation is key to ensuring both a comfortable experience and accurate results. Whether it is the pregnant partner or the accused partner taking the test, the following approach will yield the best outcome.

First, decide who will be tested. In many pregnancy-related infidelity cases, it is the accused partner (often the non-pregnant partner) who takes the polygraph. This eliminates any pregnancy-related concerns entirely. If the pregnant partner is the one being tested — perhaps to clear her own name — physician clearance should be obtained in advance [12]Verified Polygraph Test During Pregnancy — Legal Answers
Confirms many examiners test after first trimester with physician clearance and no complications.

Second, choose an experienced examiner. Not all polygraph examiners are comfortable testing pregnant individuals, and that is acceptable. The APA Standards of Practice require all examinations to be conducted in compliance with validated procedures [29]Verified APA Standards of Practice (Amended August 23, 2024)
Confirms APA Standards of Practice require validated procedures for all polygraph examinations, and an experienced examiner will know how to accommodate a pregnancy appropriately. When you book your polygraph test, mention the pregnancy so the examiner can prepare accordingly.

Third, prepare specific questions. The most accurate polygraph results come from focused, single-issue examinations [13]Verified Polygraph Validity Research — American Polygraph Association
Confirms single-issue diagnostic polygraph techniques achieve 89% aggregated decision accuracy per APA meta-analysis. Work with the examiner to develop clear, unambiguous questions that address your specific concerns — whether that is physical infidelity, emotional affairs, sexting, or other behaviours.

Finally, plan for comfort. Wear loose, comfortable clothing. Eat normally before the exam. Get adequate rest the night before. These simple steps help establish a clean baseline and ensure physiological readings are as clear as possible. Our comprehensive polygraph test pricing guide provides complete cost information to help you plan.

What to Expect on Test Day

Understanding the testing process reduces anxiety and contributes to more accurate results. The examination consists of three main phases.

During the pre-test phase, the examiner introduces themselves, explains how the polygraph works, and reviews the questions that will be asked [19]Verified Do 'lie detectors' work? What psychological science says about polygraphs
Confirms the comparison question technique was first developed in 1947 and describes polygraph examination methodology. Every question is discussed in advance — there are no surprise questions during the actual examination. This phase typically takes 30-60 minutes and includes a discussion of the specific concerns that prompted the test.

The in-test phase involves the actual physiological recording. The examiner places the sensors — pneumograph tubes around the chest, fingertip electrodermal sensors, and a blood pressure cuff — and asks the agreed-upon questions in several passes [20]Verified How to Prepare for a Security Clearance Polygraph Examination
Confirms polygraph sensor placement including pneumograph tubes, fingertip sensors, and blood pressure cuff. Each pass takes only a few minutes, and the examiner may conduct 3-5 passes. For pregnant examinees, additional breaks are provided between passes.

The post-test phase involves result analysis and verbal communication of results. Many examiners provide verbal results immediately following the exam, with a detailed written report available within 24 hours [10]Verified Frequently Asked Questions — Executive Protection Group Polygraph Service
Confirms polygraph testing does not cause harm to mother or unborn child and experienced examiners have tested pregnant women safely. This means a couple can go from uncertainty to clarity in a single afternoon.

Visit our polygraph test locations page to find an examiner near you, or contact us directly for personalized guidance on your situation.

If the Results Confirm Fidelity

When the polygraph confirms that a partner has been faithful, the relief can be transformative. For the accused partner, the vindication provides a powerful foundation for rebuilding trust. For the suspicious partner, having their fears scientifically addressed allows them to redirect their energy toward the pregnancy and upcoming parenthood.

However, it is worth noting that suspicion itself often indicates underlying relationship dynamics that may benefit from attention. The factors that triggered doubt — perhaps distance, communication breakdowns, or changes in intimacy — may still need to be addressed. Many couples find that the polygraph experience opens the door to deeper conversations about their relationship needs.

Research on interpersonal deception shows that suspicious receivers often conceal their skepticism, yet their nonverbal behaviour reveals cognitive engagement [22]Verified Interpersonal deception: Deceivers' reactions to receivers' suspicions and probing
Confirms deceivers strategically increase gaze and expressiveness when probed but their underlying responses reveal cognitive engagement. This means that even when suspicions prove unfounded, the underlying tension was real and deserves acknowledgment. Couples counselling can be an excellent complement to polygraph results, helping both partners develop stronger communication patterns.

If the Results Indicate Deception

Discovering confirmed infidelity during pregnancy is deeply painful, but it also provides the clarity needed to make informed decisions. Research suggests that approximately 60-75% of couples stay together after discovering an affair, and with professional therapy, up to 74% of couples are able to recover and rebuild their relationship [30]Verified Can Marriage Survive Infidelity During Pregnancy? A Psychotherapist Weighs In
Confirms 60-75% of couples stay together after infidelity and therapy plays a crucial role in recovery.

The immediate priority should be the health and safety of the pregnant mother and baby. Professional support from a therapist experienced in betrayal trauma is strongly recommended [8]Verified Betrayal Trauma While Pregnant? What You Need To Know
Confirms physical and mental health impacts of betrayal trauma during pregnancy including high blood pressure and preterm labor risk. The American Psychological Association reports that the most important part of recovery is understanding the roles all parties have played, and that couples counselling — even pastoral counselling — should be pursued [30]Verified Can Marriage Survive Infidelity During Pregnancy? A Psychotherapist Weighs In
Confirms 60-75% of couples stay together after infidelity and therapy plays a crucial role in recovery.

Making permanent relationship decisions during the emotional turmoil of pregnancy is generally not advisable. Many experts recommend stabilizing both the pregnancy and the emotional situation before making major life changes. Regardless of the outcome, the polygraph has achieved its primary purpose: replacing uncertainty with truth. Learn more about how our polygraph research database continues to advance the science of deception detection.

If you are considering your next steps and employment concerns arise, our guide on wrongful termination and polygraph testing may also be relevant for navigating workplace complexities during this period.