Okay, so this is more about lack of birth control than birth control itself. My boyfriend and I have been having unprotected sex since july, pretty much every time we are together (which is pretty often). July is also when my last period was. However, my doctor swears that there's no way i'm pregnant, because they've done five pregnancy tests (two urine, three blood) and all were negative. Also, they put me on the provera pill for a week to start my period, but it didn't work, just some horrible cramping that stuck me in bed for hours crying. Is there any way that I really am pregnant and am just so screwed up that all the tests are wrong? Or is there something else that could be messing me up?? As of next week I will have missed three periods, which I read can do bad things to your body, but I don't know what to do about it. Please give me any information you can, because i'm really worried.

Daile