Baby Gender Predictor

Folk beliefs say a fast fetal heart rate means a girl and carrying low means a boy. Answer the questions for a playful prediction. None of these signs has held up in research; only an ultrasound or a prenatal blood test can tell.

How to play

Answer the questions you know and skip the rest. Each answer is matched to its folk belief, and the side with more signs wins.

What research says

A study of fetal heart rates in the first trimester found no meaningful difference between boys and girls (McKenna et al., 2006). Belly shape depends on muscle tone and the baby’s position, not sex.

The probability behind it

If each tale were a coin flip, getting 6 or more of 8 on the same side happens about 29% of the time by chance, so lopsided results are common and mean nothing.

Baby Gender Predictor quiz: 10 questions

Test yourself with 10 multiple-choice questions. Choose an answer and press Submit to see if you are right and why. Your score appears at the end.

Frequently asked questions

Are baby gender predictors accurate?

No. Folk methods are about as accurate as a coin flip.

When can I find out my baby's sex?

A prenatal blood test (NIPT) from about 10 weeks, or an anatomy ultrasound around 18 to 22 weeks.

Does heart rate show the sex?

No reliable difference has been found.

Is this the same as the Chinese gender chart?

No; that chart uses age and conception month. Both are just for fun.

Can I use it for a baby shower game?

Yes, that is what it is best for.

Sources

• McKenna et al. (2006), Gender-related differences in fetal heart rate during first trimester, Fetal Diagn Ther

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