How long should my 11 year old sister's period last???

Question

I am 13 and haven't gotten it... my mom is on a business trip! Help!!

Answer 1

Don't worry about it and just be a good sister.

Answer 2

no more than a week...just make sure she changes pads every few hours and that she showers and keeps it real clean down there

Answer 3

It shouldn't last for more than a week.

Answer 4

if its her first time then it should be last anywhere between 3 to 5 days.its just the beginning,just let it happen & dont worry at all.

Answer 5

I was 11 when i started mine. there is know exact amount of days. it could last 2 days or 12 days. If it is heavy and more than 7 days and this is her first, you may want to call your parents. When i started mine i had 1 and then didn't have one for 2 months.