im 16, i had my first period when i was 13 and it has NEVER been on a regular schedule. the last period i had was preceded by about 2 weeks of spotting and then my period itself lasted about 5 weeks. i wanted to know what would cause this, and see about what could prevent it from happening in the future. i am a virgin, if that at all helps.
dont freak out! i heard from doctors that periods are almost NEVER on a consistent cycle because ur body decides when its ready. my period isnt regular at all! mine can last as long as 3 weeks and i can spot for two weeks. i dnt think there is any medical condition that causes irregular periods. its just ur bodies cycle. in fact, i know a 20 year old who still doesnt know her menstrual cycle. what helps me is tracking my menstrual cycle on a calendar, putting an x on the day it starts and the day it ends. and if ur a virgin, then u shouldnt go too long without a period since theres no chance ur pregnant.