i am only 17 i am married and my medicade card got stolen in my new town so none of the doctors will see me. but i have a irregular period.i only get it about ever 4 months.and i am obese. i have been eating healthier and smaller portions and exercising.nothing seems to help.we have also been trying for a year now to have a baby. can someone tell me what is going on with my body? oh and also for about the past week my nipples have been extremely sore. i haven't had my period for over two months.i took a pregnancy test though and showed up negative