I used to believe that a baby's sex was determined by whether the sperm had a picture of a man or woman on it.
A childhood belief about reproduction

others believed things like this
- I use to believe that the man peed in the woman to get her pregnant. Didn't know about sperm until sex ed. — das
- I used to think that if a black woman or man and a white woman or man had a baby, it would be Asian.Anon
- I thought sperm were fish and when I got a goldfish I went around telling everyone i had a sperm— Kara
- That to make a baby a man (over 21 & under 25) had to kiss a woman (over 19 & under 21).— Johny
- I used to think that to give birth, a woman had a slit cut into her inner thigh, and the baby would come out.Anon
- I thought that if a black man and a white woman (or reverse) had a baby it would be stripped!— Bec