Well, when I was about 7 my cousin turned 21. At the time, I believed EVERYONE got pregnant at 21 since my mother had me at that age.
I walked up to my cousin, sat on her lap and said, "Cousin Kippy, why don't you have a baby yet?"
A childhood belief about getting pregnant

others believed things like this
- My cousin's mom told my cousin that pop makes you short. He probably believed it.— Molly
- When me and my cousin were little, we believed that kissing someone with tongue is how you got a baby.— cat
- I used to think a second cousin meant a cousin’s cousin.— Carlos Almonacid
- That because Gerber Baby Food had a baby on it real babies were put in there. Thanks a lot cousin!— Nicole
- When I was younger, my cousin used to try to convince me that I was adopted and I sometimes believed it."Anon
- My cousin once told me that glass was made from ground up beetles, and I believed her! — benjymous