I'm not pregnant but why is my period late
So I was on birth control for my ovarian cysts, and for a couple days I forgot to take some, and me and my boyfriend had unprotected sex thinking that I would be okay, well, my period was supposed to be a couple days after we had done it, and it didn't come. So I waited a week to test and I tested twice and they came back negative. I have been excersizing a lot, but I started excersizing two weeks before my last period and (two weeks later) I still had one. But now I'm late. If the test results say I'm not pregnant, am I? I don't know what to do unless I should wait again another week and try to test again. Any advice?