I had this crazy idea that when a woman had her period for the first time she walked a certain way. So I would see like 35 year old women and think "Nah, she doesn't have her period yet, she's not walking right".
A childhood belief about periods

others believed things like this
- I thought that your period came out all at once and you had to wear a pad around the time it would come.— Sarah
- I used to believe that if you left crumbs out for a long period of time, they would turn into ants.— Bylaberrie
- That you had to marry your sibling. During this period of time I devoliped a crush on my brother.— don't worry I'm a girl
- I used to believe that you had to be on your period to get pregnant........— Tricia
- HA! I used to think when you got your period, you would just pee blood...I wish it was like that...if only.Anon
- i used to think that had to wear diapers when you were on your period— Jess