i used to believe that if you jump up and down after having sex, you won't get pregnant.
A childhood belief about getting pregnant

others believed things like this
- i used to believe that only humans got pregnant by having sex. sheep just magically became pregnant.— Lucy
- I ues to believe that if I broke th TV the people would jump out and try to catch me.— Lazyj (K)
- I used to believe that if you jump in a toilet, they lead you to another dimension.— beep.
- -nursery rhymes-
i used to believe that cows could jump over the moon when I was a kid.— Aloysius - I used to believe that if you stepped on the cracks of the pavement, a bear would jump up and eat you.— Nina
- When I was little my dad told me that monsters jump out from spotlights and I belived it...— Cassie