Hello, I am on birth control and have been for over a year. I haven't missed a pill and I am very good about taking them on time. About 7 to ten weeks ago (I know, long time) I had sex 2 times, both of them unprotected using the pull out method. I'm not sure if anything got onto my vagina but it is possible. The first time it happened I got my period the next day because I was due for it and, I took a plan B about three days later because it was the fastest I could get one. The second time I had no money to get one and was sure I would be fine. Since then, I have had what I think are periods, they start 2 to three days into my inactive pills. I bleed pretty heavily, with cramps and bloating, but I have read that some women still get periods while pregnant. The reason I am concerned is I have been having odd symptoms lately, and I'm not sure if it's me psyching myself out or not. I have been having to pee often, everytime I lie down, I feel as if my breasts have gotten larger and also I feel tightness and bloating in my belly. I haven't been diagnosed yet, but it is also possible that I have endometriosis. Could this be causing problems? Can anyone with experience help me out?