Period is so late?!?

I am only 13 and it is 9 days unpaid! I don't know why i am on my 2nd year. I am not pregnant because i have never have sex. I am not stressed. I haven't been consumption badly lately..HELP!! I don't know what is going on :\
Answers:

Mooncups - opinion?

When I was childlike my periods be very irregular...it could be only that...or a number of other things...ask your mom to see a ob/gyn...i know you are immature...but birth controll may help you

Why is my curls falling out?

You could simply have an iron lesser amount. Have your Mom take you to the doctor.

STD? or not to STD?

are you in general regular? I have impossible to tell apart problem. it just shows up when it shows up. look at your clendar if you preserve one to see if this has happen to you before or if you miscounted the days. possibly it hasnt been 28 days however.

Female victims of rape, have you, would you join together a group? How to set up a group?

The first 2 years that you start your period it may evolution days so it won't come out when you expect it. Also what could delay your spell is if you started to exercise.