I used to believe you could get pregnant at anytime once you were over 18, and you would automatically get pregnant and getting pregnant was something that your body chose, and it your body would choose when you would get pregnant and plant a seed inside your belly.
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
- When I was little I used to think that as soon as you were married the woman automatically got pregnant.Anon
- when i was 5 or 6 i used to think that if you ate an apple seed you could pregnant.— Laura
- I used to think you had to put it in a girls belly button to get them pregnant.Anon
- When I was little i believed that women cannot get pregnant if they had a belly piercing— bananahead
- I used to believe that when a woman was pregnant, she fed the baby with a tiny spoon through her belly button.— Marie