Girls, girls help? Period question?

[Anonymous]

My period is 2 weeks late today, and I haven't had any PMS symptoms other than a weird feelin stomach like I usually get. I started my Period when i was 12 and I've always had a weird schedule, it would usually range from 21-43 days in between each month. I'm 17 now and here lately(the past few months) it's been pretty consistent, until this month. I've ruled out pregnency cause it's been a little over 7 months since I've had sex, and I've had regular periods since then, and no pregnancy symptoms whatsoever. Is it normal to have your schedule go weird every now and then? Or even miss a period?

[Keira_Os]

My doctor told me that it doesn't really cause much concern while your still a teenager - your body is still changing and anything from a cold to having a bad day can affect it. If you were older and trying to have kids is when you have to worry..

[Niere]

yeah it's normal. Unstable hormones during puberty, stress, foods you eat may mess up the schedule of your period.