I used to believe that when a lady wanted to have a baby, she went to the doctor and let him know, and the doctor gave her an injection or tablet or something, and she became pregnant.
A childhood belief about getting pregnant

others believed things like this
- I used to want to be a doctor when I grew up, because doctors never die, as they can cure themselves.— Stuart
I used to believe a man and a woman needed a doctor to put their parts together when they did it.— Phil- my uncle was a doctor, so when he told me his vw could fly, i believed.— boodles
- i used to watch doctor who and every time i saw a darlic i wet myself literally.— Dan Barber
- I used to believe that the people who take your blood at the doctor's office were vampires. — Andy
- when i was young i used to think babies just poped out like a little pistle and the doctor caught itAnon