Around what age do...............??

around what age do guys find out that girls get periods??Around what age do...............??
It depends on how many females are in the house. Also how the parents how talked to their son. However, boys probably don't really understand until about 14 or 15
12 or 13
Like middle school--as soon as they find out you will know since they tease the girls about it.
^-^ middle school :). but i didnt know much about them untill highschool O_o.
Wow teasing? thats completely immature -.-'. but i guess most guys are xD
the youngest is about 8 or 9 and so on 10-13
Everyone is different but most girls get them by the time they are starting high school. I got mine like right after I turned 11, but I got mine younger then a lot of people I know. Don't worry about it, you are lucky you don't have it yet. Trust me you have plenty of time to find out what it is like.
the average age a girl starts her period is 12. "However a girl can begin menstruating anytime between the ages of 8 and 16"