late menses

[sangas]

i m 17 years old and had irregular menses since last 3 years until last year they got normal but in august / sep i took great tension and that laed me to have my periods in september normalyy but i got my next period in mid december and now its 2011 march and yet i didnot get my menses. It is also true that i was thin and now i have gained a bit weight since the past 6 months . what could be the cause ? plz answer quickly i m worried extremely

[morgstang]

Are you under a lot of stress? Stress and worrying can lead to your period days to be thrown off. I don't think you're pregnant, because if you were, you wouldn't be HAVING a period and you'd know by now since it's been happening for 3 years. I wouldn't worry too much about it. Just start a FAM chart (chart your period days) and see how drastic the cycle differences are. It sounds like stress to me =( If you're really that worried I would go see a doctor. But other than that, I think you're just fine. A lot of things can change your period days.

[gem111]

Is it possible that u are pregnant?