Because on TV, couples slept together and then had babies, I figured something jumped through the air from the man to the woman. Consequently, on an overnight train trip I refused to go to sleep! That's how my Mom found out about my beliefs and "filled me in".
A childhood belief about reproduction

others believed things like this
- I used to think sex was whenever a man and a woman slept in the same bed.— confused
- when i was 10 years old i believed that women who had twin babies had slept with 2 menAnon
- I used to only sleep on my back because I thought I would break my ribs if I slept on my stomach.— Molly
- I used to believed that when I went to sleep my heart took a rest too, and didn't pump at all while I slept.— Lara
- I used to believe that to make babies, a man would pee into a woman's butt. There. I said it.— Hu Flung Pu
- I used to believe that as I ate food, I filled up, and that once I filled up completely, I would die. Anon