I have an embarrassing story about my own friend.
So there was this day in school she got her period. Luckily, it hadn't stained her skirt. Then she came to my class and asked for a pad. I said I didn't have so me and her asked another girl and she asked out loud"who is stained?"
,There were guys there and they looked at both of us awkwardly, my friend looked totally embarrassed. Then when they found our she was the one, a guy jokingly said "How old are you? You're too young to be on your period." It was totally as girls circled around her and started asking if she counted her days and all of that stuff. Anyway, she later got a pad.