for 2 weeks.? Ever since schools been out I've had my period for 2 weeks and then it will quit then the next day it will come back for another two weeks and i've had my period for a year and its never been regular and when i do its long and heavy and when i have a long break in school my period is longer also i have back pain (not really that bad but noticable) when i go to bed. HELP ME!!!