I used to think that period blood was the wasted blood of the unborn child that girls didn't get to have because they didn't have sex to make it.
When I started my period, I seriously, and literally looked at the pad and said, "I'm sorry you didn't get born this time. But one day."
A childhood belief about periods

others believed things like this
- 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 believe period blood came from the nipples. I thought that was what "padded bras" were for!!Anon
- My mom told my sister that if she didn't eat her peas, her period would last for an entire month.— Maya
- My father used to call soya sauce "monkey blood". I didn't even consider tasting it for years!— Me
- when I was young, I heard that blood had iron in it. I thought blood was red because it was rusty.— Hunter
- I used to believe that when I started menstruating, I would bleed to death from losing too much blood.— Debbie