Baby gender predictor (just for fun)
This is a bit of fun based on the old Chinese gender chart, which pairs the mother's age at conception with the month of conception. It is a folk tradition with no scientific basis and is right about half the time by chance. BabyData labels it plainly as a novelty, not a medical test. The only reliable way to find out a baby's sex is an ultrasound scan or a medical test, so ask your midwife about your 20-week scan. Not medical advice.
Have a guess
A playful guess from an old folk chart. Just for fun, not a medical test.
Just for fun. This is a novelty based on an old folk chart. It is not a medical test and has no scientific basis. The only reliable way to find out is an ultrasound scan or a medical test.
How this works (and why it is just for fun)
This uses the old Chinese gender chart, a folk method that pairs the mother's age at conception with the month of conception to "predict" a boy or a girl. Our version reads the chart with a simple parity rule on those two numbers, so the same inputs always give the same playful answer.
Guess = parity of (mother's age + conception month)
There is no evidence any chart can predict a baby's sex. The result is random fun and right about half the time by chance. For a real answer, ask about your 20-week scan or a medical test. Not medical advice.
Names and Family Data Desk, BabyData
BabyData's editorial desk builds and documents the tools, citing the underlying rule and the official UK dataset behind every number. Pregnancy-related tools are editorially reviewed against NHS and gov.uk guidance before publication.
Last reviewed: 12 June 2026