I'm fifteen years old and I have had my period for a year and a half now. At first my periods were a bit sporadic but I assumed that was normal for your first few years. Well recently I my periods have lasted for about two weeks or more and they are really heavy to the point where I have to change my tampon every hour and I cannot leave my house really without leaking. Also, after my period comes and goes it deosn't come back for a few months. I don't know if this is normal or what, but any advice or knowledge would be appreciated. Thank you.