I have been having two periods a month for several months now. I thought it was maybe stress at first but it s still happening. I ll have ny period for a week, bleed more than usual, and then be good for a week. The next week I am bleeding again, not as bad as the first though. I haven t been pregnant, I m on implanon but I ve had it I am my arm over two years now so I don t think that s it either. Help?