Ive never been pregnate. about 2 months ago i slept with 2 guy's my ex and another guy. and for about 1yr ago my periods have been coming in normal every 28days 7 days this is after i recovered from drugs.But, before i was irregular very lite. ive been clean for 3 yrs.So two weeks before i was supposed to start i slept with my ex.The other guy i slept with 2 days before i was supposed to start my period. He always makes me have my period or if not im on it. But, this time its different. I have no period it's almost 3 months.and 2-3 days ago i went to the rest room and there was blood not alot but there was some. i put a pad on thinking i was on my period. but when i used the restroom again nothing. During these months ive been fine i dont feel sick the only time i felt sick was when i was supposed to start my period that week. i felt nauses and had headaches.ow yeah with bad lower back pain. the pain got worst to wear i couldnt sleep and sit. but when i spotted my back started to feel alittle bit better but it still hurts please i need your advice!! im scared to see a doctor!!!!