Well I will try to give a little background info on the situation first. I am 19 and started having periods about 6 years ago. I have always been pretty regular (28-29 day cycle) but in December this changed. My period was about 3 days late (didn't bother me at the time). In January it was about 4 days late (again, didn't bother me too much, but I was starting to wonder what's going on). But I figured if it happened again, I'll go see a doctor. So February, it was only one day late, so I'm thinking everything went back to normal..

 March came, and my period was about 10-11 days late (needless to say I flipped out BIG time since I am sexually active:-)  but we always use protection). Had two negative prego tests (but once my period came, I calmed down anyway). Now this month I was about 3 days late again and had a doctors apointment, but it started so I canceled it. It has been heavier than normal (so far on day 2). I mean I always have a heavy flow but I'm wondering if there is a problem here :/