I thought when I was younger that you could get pregnant, especially as an unmarried teenager, if you did something "bad". The term "bad" meant not obeying your parents, or lying or anything. I was afraid of becoming a teenager. What if I slipped up one day, such as lying to my parents, the end result was me being punished by becoming pregnant?
When I figured out you actually had to physically do something to get pregnant, when I was about 12, I was so relieved!
I think this belief has lead to a deep fear of ever having kids.
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 used to believe that if you crossed your fingers when you were lying, you weren't really lying.— jo
- When I was younger I thought that to elope was to run off and get pregnant before you got married.Anon
- When I was younger I thought that when a woman was pregnant she would feed her baby through her belly button!— Hennie
- When I was younger I used to believe that women just magically got pregnant after getting married.Anon
- I thought your loins were kidneys, and nobody corrected me until I was a teenagerAnon