I am on birth control pills and have never missed a pill and I take it at the same time every day like clock work. I even set an alarm so I take it at the same time. I had sex with my husband when I was one week two of my second pack and he ejaculated inside me. I was still concerned for some reason so I took plan b within two hours of the incident. It's been a little over two weeks since and I am feeling extremely bloated and have severe heartburn. Do you think I should be concerned of pregnancy or could this just be a result of the plan b coupled with my regular birth control?