A baby’s heart rate stays in a consistent range as they grow and develop in the womb. This range doesn’t depend on the baby’s sex.

There’s no harm in seeing how you’re carrying, though! Just don’t use the size or shape of your bump as conclusive proof that you’re having a boy or a girl.

The same hormones that make your nipples look darker also create the linea nigra on your stomach. They also tend to darken the shade of your moles and beauty marks.

Developing larger breasts is a super common side effect of pregnancy, but the size of your chest has nothing to do with the sex of your baby.

There’s no harm in playfully guessing that you’re having a girl based on your acne, as long as you know that there’s no medical evidence to back that claim up.

There’s nothing wrong with playfully blaming your sweet or salty snack habits on your little one, as long as you’re not seriously believing in the myth.

A lot of pregnancy mood swings are related to stressors about being a parent, and have nothing to do with your baby’s sex whatsoever.

You can find both Chinese and Mayan gender predictors online.

According to this same myth, picking up the key in the very center means that you’re having twins.

Garlic is really potent, which is why you might smell garlicky yourself after eating a clove. It has nothing to do with the sex of your baby.

At 20 weeks, your doctor looks for signs of either male or female genitalia on the ultrasound, which helps them conclusively figure out your baby’s sex. [21] X Trustworthy Source PubMed Central Journal archive from the U. S. National Institutes of Health Go to source This is the most definitive way to identify a baby’s sex.

Medical experts agree that this procedure is totally safe and doesn’t pose a risk to you or your baby. Fetal DNA tests are around 98% accurate, so you can be confident in whatever results your doctor gives you.

Research suggests that nub theory is around 87% accurate, which makes it a fairly safe way to tell if you’re having a boy or a girl.

Keep in mind that morning sickness is a super common symptom, especially when your pregnancy is first starting out. [25] X Trustworthy Source Mayo Clinic Educational website from one of the world’s leading hospitals Go to source The severity of nausea and vomiting really depend on the person, and don’t guarantee whether you’ll have a boy or a girl. Plenty of mothers have had terrible morning sickness while carrying sons, after all! Some people think that feeling nauseous is a sign of an unhealthy pregnancy, but this isn’t true at all.

The research on memory and a baby’s sex isn’t always conclusive and consistent. Plus, some people naturally have better memories than others—the sex of your baby could have nothing to do with it.

At a 21:20 ratio, baby boys (on average) are slightly more common than baby girls. In this limited study, the psychologically stressed women ended up having baby girls and boys at a 3:2 ratio. The physically stressed mothers gave birth to girls and boys at a 9:4 ratio.

Keep in mind that increased appetite is a fairly common pregnancy symptom, and feeling extra hungry isn’t conclusive proof that you’re having a boy versus a girl. [29] X Trustworthy Source Cleveland Clinic Educational website from one of the world’s leading hospitals Go to source

Food aversions are pretty common during the beginning of pregnancy. [31] X Trustworthy Source Cleveland Clinic Educational website from one of the world’s leading hospitals Go to source Dealing with food aversions during your first trimester doesn’t prove that you’re specifically having a boy or girl.

This isn’t a fully conclusive way to identify your baby’s sex, but it can be an interesting way to shed some light on the possibilities.

A baby’s genitalia doesn’t distinctly form until at least 9 weeks of pregnancy, which makes some OB/GYN doctors hesitant to support the Ramzi Theory.