3 weeks late?!

3 weeks late?

i am about 3 weeks late on my period and i dont know whats wrong?! i am not having sex so i am not pregnant do you know what could be wrong? i have gained some weight latley could that be a factor?

4 weeks ago
oh and i am 16 if you need to know that

4 weeks ago
umm not really stressed just have been kind of depressed latley because i have gained about 10 pounds

4 weeks ago
i started my period when i was 13

Not to be alarmed, sometimes women's periods adjust when something changes. If you start a new job, or you're hanging out with different girls than you usually do, the hormones from other women can set your period off on a different schedule. I used to work at a jewelry store with all females, and every time one person started it set everybody else's off, too. Or it could just be a change in your diet or stress level. Just don't worry, it will come! (unless you're pregnant)