Pregnancy Myths – 7 Dangerous Misconceptions Debunked by Science

1. You Should Eat for Two

This is one of the oldest pregnancy myths. While calorie needs do increase slightly during pregnancy, especially in the second and third trimesters, it doesn’t mean doubling your food intake. Overeating can lead to unnecessary weight gain, gestational diabetes, and complications during delivery. Instead, focus on nutrient-rich meals that support fetal development and maternal health. A registered dietitian can help you tailor a balanced plan suited for your needs.

2. You Can’t Exercise During Pregnancy

Unless your doctor has advised otherwise, physical activity is actually recommended. This common pregnancy misconception stems from outdated advice. Low-impact exercises like walking, prenatal yoga, and swimming improve blood flow, reduce swelling, enhance mood, and help prepare the body for labor. Staying active also helps manage weight gain and boosts energy levels.

3. Morning Sickness Only Happens in the Morning

This is a misleading name. Many women experience nausea at any time of day—or even throughout the day. While most common in the first trimester, symptoms can persist into the second or third. Understanding this helps reduce anxiety and unrealistic expectations based on misleading terminology.

4. You Can Predict Baby’s Gender by Belly Shape

This myth is widespread but has no scientific basis. The shape or height of your belly is influenced by many factors like your body type, muscle tone, and baby’s position—not their gender. Scientific methods like ultrasound or genetic testing are the only reliable ways to determine gender. This is one of many pregnancy myths rooted in old wives’ tales.

5. Spicy Foods Can Induce Labor

You may hear that spicy foods trigger labor, but there’s no solid evidence to back this up. While such foods might cause digestive discomfort or heartburn, they don’t stimulate labor contractions in any proven way. Medical induction should always be discussed with a healthcare provider.

6. You Should Avoid All Caffeine

Among the more persistent myths about pregnancy is that caffeine must be completely avoided. In truth, moderate caffeine consumption (under 200mg per day) is considered safe for most pregnant women. That equals about one 12-ounce cup of coffee. However, it’s still important to monitor all sources of caffeine—including tea, chocolate, and some medications.

7. If You Carry High or Low, It Means Something

Some say carrying “high” means a girl and “low” means a boy. This myth has no medical support. The appearance of a baby bump is influenced by factors like abdominal strength, baby’s size, and positioning. It’s a fun idea, but nothing more than a common pregnancy misconception.

Why It’s Important to Bust These Myths

Believing in pregnancy myths can lead to poor decisions, unnecessary stress, or even health risks. These misconceptions distract from evidence-based care and can undermine confidence during a sensitive period. Understanding the difference between pregnancy facts vs myths empowers mothers to take control of their prenatal health with clarity and trust in science.

Find Reliable Pregnancy Information

Rather than relying on anecdotal advice or social media, consult your OB-GYN, midwife, or certified prenatal educator. For trustworthy resources, visit our Tools & Resources page or explore expert sources like the Mayo Clinic Pregnancy Guide.