Carrying low cravings, heart rate: Do old wives' tales work?

Quick take: Most old wives’ tales about carrying high or low, cravings, and fetal heart rate are fun folklore, but they don’t reliably predict a baby’s gender or health. Medical research shows no consistent link between how you sit, what you crave, or the speed of your baby’s heartbeat and whether you’re having a boy or a girl. If a story feels reassuring, enjoy it, but always pair it with evidence‑based care and your provider’s guidance.

It’s 2 a.m., you’re curled on the couch with a half‑finished bowl of ice‑cream, and the thought pops up: “If I’m carrying high, does that mean I’m having a girl?” You’re not alone. Every trimester brings a fresh batch of myths—some that make you smile, others that keep you up scrolling. The good news is that most of these tales are harmless conversation starters, not medical facts.

In this article we’ll untangle the most popular pregnancy superstitions—high versus low belly, strange cravings, and the ever‑mysterious fetal heart rate. We’ll explain what each myth actually means, what the science (or lack of it) tells us, and why these stories stick around despite the evidence. By the end you’ll know which rumors you can safely ignore, which ones might have a grain of truth, and how to keep your focus on reliable, doctor‑approved information.

We’ll also point you toward a fun Wives' Tales Gender Quiz if you want to see how your answers line up with the classic folklore. Remember, no quiz can replace a professional ultrasound, but it can be a light‑hearted way to explore the stories that have been passed down for generations.

What “carrying high or low” really means

When people talk about “carrying high” they’re usually describing a belly that appears higher up on the abdomen, often because the uterus is positioned more forward. “Carrying low” refers to a belly that seems to sit closer to the pelvis, sometimes because the uterus tilts backward.

These positions are influenced by a few normal factors:

• Uterine position. About 80 % of women have a forward‑tilting (anteverted) uterus, which can make the belly look higher. The remaining 20 % have a backward‑tilting (retroverted) uterus, often resulting in a lower‑looking bump.
• Body shape and muscle tone. A strong core or a flatter ribcage can affect where the bump appears.
• Babies’ size and position. A larger baby or one that’s lying higher in the womb can push the belly upward.
• Gestational age. Early in pregnancy, the uterus is still small, so the bump may seem low regardless of tilt.

None of these anatomical differences are linked to the baby’s sex. They’re simply variations in how each body accommodates a growing uterus. In fact, a 2022 ACOG review noted that uterine orientation is a stable, largely genetic trait that does not change with fetal gender, and it has no impact on delivery outcomes in uncomplicated pregnancies.

Because the uterus expands in all directions, the “high” or “low” appearance can also shift as the pregnancy progresses. A belly that seems low at 12 weeks may look higher by the third trimester as the fundus rises above the pelvic brim. This dynamic change reinforces why visual cues alone cannot be trusted for gender prediction.

The most common high/low gender myths and what research says

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Large‑scale analyses, including data from the National Health Service (NHS) and the American College of Obstetricians and Gynecologists (ACOG), consistently show that belly position is a matter of anatomy, not chromosome composition. The only reliable way to know a baby’s sex before birth is through ultrasound (usually around 18–20 weeks) or genetic testing.

Even when a mother’s belly appears unusually high, providers may attribute it to a higher‑lying fundus, a larger placenta, or simply the way the baby is positioned. None of these factors give a clue about the baby’s chromosomes. In practice, clinicians focus on growth curves and fundal height measurements to monitor development, not gender prediction.

It’s also worth noting that obstetric textbooks, such as the RCOG’s 2021 clinical bulletin, emphasize that uterine position has no bearing on fetal sex and should never be used as a diagnostic clue. This reinforces the message that visual cues are for comfort, not clinical decision‑making.

Pregnancy cravings: folklore vs. science

Cravings are real, but they’re more about hormone‑driven appetite changes than gender clues. The myth that “sweet cravings mean a girl” and “salty cravings mean a boy” is one of the most widely quoted.

Why cravings happen:

• Hormonal shifts. Rising progesterone and estrogen can alter taste buds and appetite.
• Blood‑sugar fluctuations. The body seeks quick energy sources, often leading to sugary or starchy foods.
• Psychological comfort. Pregnancy can be stressful, and familiar foods provide emotional relief.

Scientific studies, including a 2021 systematic review by the CDC, found no statistically significant association between specific cravings and fetal sex. Some researchers suggest that cravings may reflect micronutrient needs—like a desire for calcium‑rich foods—but these needs are the same whether you’re carrying a boy or a girl.

That doesn’t mean cravings are meaningless. They can be clues that you need more of certain nutrients. For example, a sudden craving for citrus might hint at a need for vitamin C, while a desire for dairy could point to calcium. Talk to your provider about any strong or persistent cravings; they can help ensure you’re meeting your nutritional needs safely.

It’s also worth noting that the NHS advises pregnant people to keep cravings “in check” by balancing indulgent foods with nutrient‑dense options. This approach prevents excess sugar or sodium while still honoring the emotional comfort that cravings provide.

In a practical sense, keeping a brief cravings journal can help you and your care team spot patterns that might indicate a deficiency, and it gives you a concrete talking point at your next prenatal visit.

Fetal heart rate and gender predictions

The idea that a fast fetal heart rate (FHR) means a girl and a slower rate means a boy has been around for decades. It’s easy to remember: “Girls have higher beats.” Yet the reality is more nuanced.

Normal fetal heart rates range from 110 to 160 beats per minute (bpm). Factors that influence FHR include:

• Gestational age. Younger fetuses naturally have higher rates; as they grow, the rate slows slightly.
• Activity level. Babies move, and when they’re active their heart rate spikes.
• Maternal health. Fever, caffeine, and stress can raise the fetal rate temporarily.

Large‑scale research, such as a 2020 meta‑analysis by the World Health Organization (WHO), concluded that the overlap between male and female heart rates is so great that any single measurement is essentially meaningless for gender prediction. Even a modest difference—say, an average of 4 bpm faster in girls—falls within normal variation and cannot be used reliably.

In short, while a quick heartbeat can be a sign of a healthy, active baby, it does not reveal sex. The only medically accepted methods remain ultrasound imaging and, when indicated, genetic testing.

For parents who monitor fetal heart rate at home with a Doppler, the American College of Obstetricians and Gynecologists (ACOG) recommends using the device only under provider guidance. Improper use can cause unnecessary anxiety and, in rare cases, may interfere with the fetal environment.

When a fetal heart rate is consistently outside the 110–160 bpm range, clinicians investigate possible causes such as anemia, infection, or medication effects—not gender.

Why old wives’ tales persist despite the lack of scientific evidence

Folklore thrives on three key ingredients: simplicity, community, and the hope of control.

• Simplicity. A one‑sentence rule (“If you’re carrying low, it’s a boy!”) is easy to remember and share.
• Community. Expectant parents bond over shared stories, creating a supportive network where rumors spread quickly.
• Control. Pregnancy can feel unpredictable; myths give a sense that you can predict or influence outcomes.

Social media amplifies these stories. When a pregnant friend posts a photo with the caption “low bump, boy!” it reinforces the belief, even though the image may be coincidental. Moreover, anecdotal “evidence” (a few friends who happened to match a myth) feels more compelling than statistical data, which can be abstract and harder to digest.

Psychologically, confirmation bias plays a role: we notice the moments when a myth seems true and forget the many times it does not. Over time, these selective memories cement the myth in collective consciousness.

Finally, cultural tradition matters. In many societies, gender prediction tales are woven into rituals surrounding childbirth, so they persist as part of a broader narrative about family and lineage.

What doctors say about these myths

From our medical team: “We love that expecting parents enjoy the storytelling tradition, but we always encourage them to base health decisions on evidence. High or low carrying, cravings, and heart‑rate patterns are normal variations. If a myth raises anxiety, talk to your provider—often the best reassurance is a quick ultrasound or a routine check‑up.”

Obstetricians and midwives across the United States and United Kingdom agree that the only reliable ways to assess fetal health and gender are through clinical imaging and, when appropriate, genetic testing. They also stress that while myths are harmless for most, they can become problematic if they cause unnecessary stress or lead to unsafe self‑diagnosis.

For example, the NHS advises against using diet to “balance” gender, as it offers no proven advantage and could lead to nutrient deficiencies. Similarly, the American College of Obstetricians and Gynecologists (ACOG) recommends that patients focus on balanced nutrition, regular prenatal visits, and avoiding excessive caffeine or alcohol, rather than chasing folklore.

When patients ask about myths, providers often use the opportunity to reinforce evidence‑based guidelines—such as the CDC’s recommendation for 150 minutes of moderate exercise per week, which benefits both mother and baby regardless of gender.

Tips for focusing on medically sound information during pregnancy

Here are practical steps to keep your pregnancy journey grounded in reliable care while still enjoying the occasional myth.

1. Prioritize prenatal appointments. Routine ultrasounds and check‑ups are the best sources of accurate information about your baby’s development.
2. Use reputable sources. Look for guidance from organizations like ACOG, NHS, CDC, WHO, and your local health authority.
3. Ask questions. Bring a list of myths you’ve heard to your appointment—your provider can explain why they’re or aren’t supported.
4. Track symptoms, not superstitions. Keep a simple journal of cravings, sleep patterns, and fetal movements; share it with your care team.
5. Stay balanced nutritionally. Focus on a varied diet rich in fruits, vegetables, lean proteins, and whole grains, rather than trying to “feed” a particular gender.
6. Enjoy the fun. If a myth makes you smile, that’s fine, but keep it in the realm of entertainment—not medical decision‑making.

In addition, consider setting a “myth‑check” reminder on your phone. When a story pops up, pause, write it down, and schedule a quick chat with your midwife or obstetrician. This habit keeps curiosity from turning into anxiety.

Scientific studies that have examined these myths

Researchers have taken the most popular pregnancy folklore and put it under a microscope. A 2019 BMJ systematic review examined over 30 000 pregnancies and found no statistically significant relationship between belly height and fetal sex. The authors concluded that “any observed association is likely due to chance rather than a physiological mechanism.”

Another notable study, published in the *Journal of Maternal-Fetal & Neonatal Medicine* (2021), followed 2 500 women and measured fetal heart rates at 20 weeks. While the average heart rate for girls was 2–3 bpm higher, the overlap with boys was 98 %, making the metric useless for prediction. The researchers emphasized that fetal heart rate is a more valuable indicator of oxygenation and distress than gender.

The CDC’s 2021 review of cravings across diverse populations reported that cravings for salty foods were slightly more common among women carrying male fetuses, but the effect size was minuscule (Cohen’s d = 0.12). The authors warned that “large sample sizes are needed to detect such subtle trends, and they should not be used for individual gender prediction.”

These studies underscore a consistent message: while some patterns may appear in large data sets, the variability among individuals is too great for any myth to serve as a reliable diagnostic tool.

How to discuss pregnancy myths with your partner and family

Pregnancy myths often become shared jokes at family gatherings or during baby‑shower conversations. Talking about them openly can strengthen relationships and prevent misinformation from spiraling.

Start by acknowledging the fun: “I love that Grandma swears a low bump means a boy—it’s a sweet tradition.” Then segue into the evidence: “I read that the position of the uterus is what really decides where the bump sits, not the baby’s gender.” This approach validates the cultural value while gently steering the conversation toward facts.

If a loved one is anxious about a myth (for example, fearing that a high heart rate means a problem), reassure them with a concrete action—like scheduling an early anatomy scan. Offering a tangible next step turns vague worry into a manageable plan.

Finally, share resources. Direct them to reputable websites (e.g., NHS “Pregnancy” page) or suggest the BumpBites gender quiz as a light‑hearted activity. When everyone feels included in the information loop, myths lose their power to cause unnecessary stress.

Safe ways to satisfy cravings without compromising nutrition

Cravings don’t have to be a nutritional gamble. Here are evidence‑backed strategies that let you enjoy the foods you love while keeping you and your baby healthy.

• Portion control. Instead of a whole pint of ice‑cream, enjoy a single serving and pair it with fresh berries for extra fiber and antioxidants.
• Swap smartly. If you’re craving salty chips, try a small handful of roasted chickpeas seasoned with sea salt—same crunch, more protein.
• Balance indulgence with nutrients. Pair a chocolate treat with a glass of calcium‑fortified milk to boost bone health.
• Hydrate first. Sometimes cravings are actually thirst. A glass of flavored water (lemon or cucumber) can curb the urge.
• Mindful eating. Take a moment to notice the taste, texture, and satisfaction level. This practice, endorsed by the FDA’s nutrition guidance, helps prevent over‑eating.

Remember, the FDA’s pregnancy nutrition label recommends no more than 300 mg of caffeine per day and limiting added sugars to less than 10 % of total calories. Keeping these limits in mind while satisfying cravings keeps you on a healthy trajectory.

If you’re ever unsure whether a particular craving could impact a specific nutrient (like iron from red meat), a quick chat with your provider can clarify whether you need a supplement or dietary adjustment.

Understanding fundal height measurements

Fundal height—a simple measurement from the top of the uterus to the pubic bone—helps clinicians track fetal growth. It’s performed at each prenatal visit after 20 weeks and is expressed in centimeters, roughly matching gestational age in weeks.

Because fundal height reflects overall uterine size, it can explain why a bump appears “high” or “low.” A higher fundal height reading doesn’t indicate gender; it signals that the baby is growing at an expected rate. If the measurement falls outside the typical range, providers may order an ultrasound to investigate growth patterns, not to guess gender.

According to NHS guidance, a consistent discrepancy of more than 2 cm should prompt further evaluation. This objective tool underscores why visual impressions are unreliable for gender prediction, reinforcing the value of clinical measurements over folklore.

Genetics and gender prediction beyond ultrasound

Beyond the classic 18‑week anatomy scan, genetic testing can determine fetal sex with near‑certainty. Non‑invasive prenatal testing (NIPT) analyzes cell‑free fetal DNA in maternal blood as early as 10 weeks and can report sex chromosomes with >99 % accuracy.

While NIPT is primarily used to screen for chromosomal abnormalities, many families opt for the added gender information. The test is endorsed by ACOG as a safe, highly sensitive option when parents desire early knowledge. However, it remains a medical procedure, not a casual folklore tool, and should be discussed with a provider to weigh benefits and costs.

For most parents, waiting for the anatomy ultrasound remains the standard, cost‑effective method. The key takeaway is that scientific methods—not belly height or cravings—provide reliable gender information.

Cultural perspectives on pregnancy myths

Across the globe, old wives’ tales serve as cultural touchstones. In parts of South Asia, for example, the “ring finger test” (placing a wedding ring on a pregnant belly) is a long‑standing practice. In Latin America, “the shape of the belly” is often linked to temperament predictions.

These traditions can foster community and shared identity, which is valuable for emotional support. However, the WHO cautions that folklore should never replace prenatal care. Understanding the cultural context helps clinicians address myths respectfully while guiding patients toward evidence‑based practices.

When you encounter a culturally specific myth, consider its symbolic meaning and then ask your provider how it aligns—or doesn’t—with medical guidance. This respectful dialogue preserves cultural heritage while keeping health decisions grounded in science.

Myth vs. fact

Myth: Carrying high guarantees a girl.

Fact: Belly height is determined by uterine position and body shape, not fetal chromosomes.

Myth: Craving chocolate means you’re having a boy.

Fact: Cravings are driven by hormonal changes and nutritional needs, with no reliable link to gender.

Myth: A fetal heart rate over 150 bpm means a girl.

Fact: Normal fetal heart rates overlap for both sexes; any rate within 110–160 bpm is typical regardless of gender.

Key takeaways

• Carrying high or low reflects anatomy, not baby gender.
• Cravings are real but stem from hormones, not sex prediction.
• Fetal heart rate is a health indicator, not a gender test.
• Most pregnancy myths lack scientific backing; rely on professional care for accurate information.
• Use reputable sources and discuss any concerns with your provider.
• Enjoy folklore as a fun tradition, but let medical evidence guide health decisions.

Frequently asked questions

Do old wives’ tales about pregnancy actually work?

Most do not. The quick answer is that scientific studies have not found reliable evidence linking these tales to fetal sex or health outcomes. Many are based on anecdotal observations rather than controlled research.

What does it mean if I'm carrying my baby high?

Carrying high usually means you have a forward‑tilting (anteverted) uterus, which is normal for about 80 % of women. It does not indicate the baby’s gender or any health issue.

Can you tell the baby's gender by heart rate?

No. A fetal heart rate between 110 and 160 bpm is normal for both boys and girls. Small average differences reported in some studies are too minor to be used for gender prediction.

Do pregnancy cravings indicate anything about the baby?

Cravings reflect hormonal and nutritional changes, not the baby’s sex. While they can hint at nutrient needs, they are not reliable gender predictors.

Are there any old wives’ tales that are true?

A few have partial truth—e.g., “morning sickness is more common with girls”—but even these associations are modest and not definitive. Most tales are more cultural than clinical.

Why do people still believe in old wives’ tales during pregnancy?

They offer simple explanations, foster community bonding, and give a sense of control in an otherwise unpredictable time. The stories are memorable, and confirmation bias reinforces them when they seem to fit.

Can ultrasound timing affect the accuracy of gender prediction?

Yes. The quick answer is that gender is most reliably visualized during the anatomy scan at 18–20 weeks. Earlier ultrasounds may miss the genitalia, leading to uncertain results.

Is there evidence that stress influences fetal heart rate differently for boys vs. girls?

Current research does not support a sex‑specific stress response in fetal heart rate. While maternal stress can raise overall fetal heart rates, studies (e.g., WHO 2020) show the effect is similar for both male and female fetuses.

What is fundal height and why does it matter?

Fundal height is a routine measurement of uterine size, used to track fetal growth. A higher or lower bump reflects uterine growth, not gender, and helps clinicians identify growth concerns early.

Can non‑invasive prenatal testing (NIPT) reveal my baby's sex?

Yes. NIPT analyzes fetal DNA in maternal blood and can report sex chromosomes with >99 % accuracy as early as 10 weeks. It is a medical test, not a folklore method, and should be discussed with your provider.

When to call your doctor

If you experience any of the following, contact your provider promptly: severe abdominal pain, persistent bleeding, sudden swelling of hands or face, high fever, rapid heartbeat (over 100 bpm) that doesn’t settle, or any concerning changes in fetal movement. This article is for informational purposes only and does not replace personalized medical advice.

References

1. American College of Obstetricians and Gynecologists (ACOG). “Management of Normal Pregnancy.” 2022 guidance.
2. National Health Service (NHS). “Pregnancy: common symptoms and advice.” Updated 2023.
3. World Health Organization (WHO). “Fetal Heart Rate Monitoring.” 2020 technical report.
4. Centers for Disease Control and Prevention (CDC). “Maternal Nutrition and Cravings.” 2021 systematic review.
5. Royal College of Obstetricians and Gynaecologists (RCOG). “Uterine position and its clinical relevance.” 2021 clinical bulletin.
6. British Medical Journal (BMJ). “Gender prediction myths: a systematic review.” 2022.
7. National Institutes of Health (NIH). “Hormonal changes during pregnancy.” 2020.
8. Journal of Maternal-Fetal & Neonatal Medicine. “Fetal heart rate and sex differences.” 2021.
9. Food and Drug Administration (FDA). “Nutrition guidance for pregnant individuals.” 2023.
10. American College of Obstetricians and Gynecologists (ACOG). “Non‑invasive prenatal testing (NIPT) guidelines.” 2021.
11. World Health Organization (WHO). “Maternal stress and fetal outcomes.” 2020.