I am 17, my periods are often maybe 2-3 days late. My cycles can last 32-36 days, and I have a heavy flow, should I be worried? I think I got my first period when I was 13 or 14. I know periods are fairly different but I worry about mine being signs of something worse. I can have heavy flows and pass blood clots. Even now I am 2 days late. I just feel that my flow may be abnormal as I often leak, through sanitary products.. what should I do?