I got my first period last year in August, and then it disappeared for a year until July of this year. Now it's August, and it's late again...
I'm pretty sure i'm not pregnant (even though i keep thinking my stomach looks big) because i'm 13 and have NEVER had s*x. I don't even have a boyfriend.
Is this normal, or is something wrong?
I've gained like 3 pounds this summer, and started excersizing a little more...Could this have anything to do with it?
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