my period started when i was 13. from the first time it was normal, lasting only a few days. then i wouldnt have another period for months, almost a year. then it came back. it went on for a over a week, light at first then heavy, then it would stop. Then it stopped for half a year. When it came back, it lasted over a week again. The cycle started and all of it were irregular. They would come in late, and last from 13-20 some days. it would always start light, somtimes barely noticible, and then extremly heavy to the point that my pad gets soaked completly quickly. i dont know whats wrong at all.