While pregnancy myths may vary from generation to generation and from region to region, here are a few of the most common:

Myth: Standing on your head after sex can increase your chances of becoming pregnant.
Truth: Although some experts say that lying down after sex for 20 to 30 minutes can boost your chances of conception because it keeps the sperm inside you, standing on your head has not been proven to aid in conception (and you might hurt your neck while trying to do it!).

Myth: The shape and height of your belly can indicate your baby’s sex.
Truth: The popular belief that women carrying boys carry low and that women carrying girls carry high just isn’t true. The shape and height of your belly is determined by your muscle tone, uterine tone, and the position the baby is in. That’s why someone may think you’re having a boy because you’re carrying low, when actually the baby just dropped lower into the pelvis because you’re closer to delivery. So, what’s the most accurate way to determine your baby’s sex? Talk to your doctor about getting an ultrasound.

Myth: Fetal heart rate can indicate your baby’s sex.
Truth: A normal fetal heart rate is between 120 and 160 beats per minute (bpm), although some people think if it’s faster (usually above the 140 bpm range) it’s a girl and if it’s slower it’s a boy. But there have been no studies that conclusively show that heart rate is a predictor for a baby’s gender. Your baby’s heart rate will probably differ from prenatal visit to prenatal visit anyway — depending on the age of the fetus and activity level at the time of the visit.

Myth: The shape and fullness of your face during pregnancy can indicate your baby’s sex.
Truth: Every woman gains weight differently during pregnancy, and every woman experiences different skin changes. If people tell you that because your face is round and rosy you’re having a girl, they might be right — but it’s just as likely that they’re wrong!

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