I used to believe that when a woman was pregnant the baby could play monkey bars on her ribs.
A childhood belief about getting pregnant

others believed things like this
- My cousin thought ribs at restaurants were people ribs.Anon
- I thought baby back ribs were from actual babiesAnon
- I used to believe that when a woman was pregnant, she fed the baby with a tiny spoon through her belly button.— Marie
- When I was younger I thought that when a woman was pregnant she would feed her baby through her belly button!— Hennie
- I thought a Monkey was just a baby Gorilla and when they grew up their Tails fell off!— Brainhead
- I used to think that if a black woman or man and a white woman or man had a baby, it would be Asian.Anon