I used to think that your period was this, red, gloppy mess, that would give you a stomach ache until you went to the bathroom to get it out...much like a bowel movement.
I don't know what made me think this. I'm glad my idea wasn't true though.
A childhood belief about periods

others believed things like this
- I thought a stomach ache was a stomach egg— Catherine
- I used to believe that God was like a puppeteer, controlling every single movement we made. — Carrie C. in PA
- I was horrified when my first period arrived. It wasn't blue, like in the commercials for sanitary towels.— Jane
- I used to think that if you ate cat food you would die. I found out it wasn't true
— Bob#4 - My sister told me whenever I had a tummy ache it was my unborn twin inside my stomache trying to get out.— Jamie Field
- When I was young I used to believe that Euthanasia was a youth movement in Asia- how naive is that!!!— Ruth