I used to believe that you could get pregnant by having an orgasm - even if you had it whilst on your own. After having my first orgasm (on my own) I was scared to death.
A childhood belief about sex

others believed things like this
- i used to think when you had an orgasm you were giving birth— splooger
- I always thought only boys could orgasm. — kg
- I thought “Orgy” was slang for orgasm until I looked up the definitionAnon
- I used to think an orgasm was a special type of orange juice because it sounded similar.— HaPpY
- I used to believe that "Earwigs lived in your ears", scared
me to death for years.— Will Chapman - I used to think that if you were scared "half to death" that you only had one scare left before you died.— Bush Hiddenofsky