I have no idea what's going on. I'm on the pill, had 5 seconds of quick "wait I shouldn't be doing this" sex, had a 1 day period 5 days after that (which is when I was supposed to get it...), and now I'm supposed to get it again in a week. Starting last night, I have a horrible pain in my right breast near the side. It's only in one area (as if I got punched) and neither of my breasts have any other tenderness. I was wondering if this is PMS related (which is a pain I haven't had even in 7 years), a pregnancy pain, or maybe something I should get checked out because it doesn't sound like either. What do you all think?