When I was young I recall knowing that you had to insert your penis into a woman's vagina to get pregnant. The part I had wrong was that I thought you had to urinate inside her to make a baby!!
A childhood belief about getting pregnant

others believed things like this
- When I was younger I thought that when a woman was pregnant she would feed her baby through her belly button!— Hennie
- I used to believe that when a woman was pregnant the baby could play monkey bars on her ribs.— Laura
- I used to believe that when a woman was pregnant, she fed the baby with a tiny spoon through her belly button.— Marie
- That to make a baby a man (over 21 & under 25) had to kiss a woman (over 19 & under 21).— Johny
- i used to believe that a penis was the same as a vagina except really long— *stupid*
- i used to believe that if you have sex for too long, the penis would stay in your vagina— Angela