Early menopause at 17?????

sarah
Ive been having extreme problems since my miscarriage in sept of 2016, my back has been bad, my periods start light then go to extremely heavy, no pain, extreme dryness when having intercourse, and sometimes it even is bloodish, we use lubrication. The last two months i should have concieved, i had sex on all my fertile days, my ob says everythings fine, i produce less discharge, now. Then i did before i got pregnant.. im also very moody and just get pissed off over everything. The grass irritates me. Im on no medicine, i was on birthcontrol but theyve all made me extremely ill and id constantly puke, even if i took some zofran and it likely made it worse. I need opinions