i didn't get mine till i was almost 18, then it would come sporatically like 4 month then have it for a month then in another three months than have it for a month, than it didn't come for 8 months..than i had my son, after that i had it last 2 months and then it stopped, i had an IUD put in whic helped wonderfully (u gotta give it a few months cause you will be cramping something aweful) but it regulated my periods and i didn't bleed so much (which i also had a problem with) i decided after almost 2 years to take it out. and now my periods are still regular they last for 4 days and not heavy.