I knew about the whole sperm]egg/penis]vagina thing when I was 5. My dad explained it pretty well, but one thing I didn't understand was how the sperm came out. I thought testicles were sperm, and every man had only 2 of them, so they could only have 2 kids. (I didn't know anyone with 3 kids) I thought that grown men's testicles were on the end of their penis instead of at the bottom and when they had sex one fell off inside the woman. Thank god It isn't like that...
A childhood belief about reproduction

others believed things like this
- I thought sperm were fish and when I got a goldfish I went around telling everyone i had a sperm— Kara
- 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 condoms were thing that u put in your mouth and they would melt and kill all the spermAnon
- i used believe and erection was when your testicles went into your penisAnon
- When i was little, i thought that when i grew up i could only have two kids because i only had two testicles.— nick
- 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.