This is actually an ex-boyfriend from high school's belief. I finally set him straight. Whenever I was upset he would ask me if it was "the first of the month" and I never understood. Then I realized that he thought girls only got their periods during the "first of the month." Odd thing, he would ask me not only at the first of the month but all month long.
A childhood belief about periods

others believed things like this
- My sister believed that october was the 10th month!— Sally
- For years I thought that spunk was a male period and that boys spunked once a month - Yeah right!— Stupid Child
- My mom told my sister that if she didn't eat her peas, her period would last for an entire month.— Maya
- The moon was actually either a sugar cookie or a banana, depending on the time of the month. — Jessica Aspra
- if you stand on your nose and sing the blues you wont get hiccups for a month.Anon
- When I was little my sister told me salt was ground up dinosaur bones...I barley ate for a month...— Chandler