When my mom was pregnant with one of my little sisters (I was 7), she got me books on baby development and birth because I was so curious about it all. I became quite the expert on how things worked. There was one thing I didn't understand, though:
"Mom, how does the sperm get from the man into the woman?"
"It happens when they're very close together," she said.
For years, I'd see couples sitting close together and try to see sperm flying through the air between them.
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 believe that a baby's sex was determined by whether the sperm had a picture of a man or woman on it.— David E.
- I thought sperm were fish and when I got a goldfish I went around telling everyone i had a sperm— Kara
- a friend of mine thought that you could get pregnant by swallowing sperm. Ha!Anon
- i used to believe that condoms were thing that u put in your mouth and they would melt and kill all the spermAnon
- 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