Hello everyone, I've read some questions already about what I'm asking but none where the same as mine. I'm 22 soon to be 23. My boyfriend and I do not use condoms but I'm on birth control. We has sex last in dec near the 18-20th. I had my period the dec 24th threw to the dec 29th. Everything with it was normal. But now being the 3 of january my breast's and back are killing me, I also have slight cramping pain. Does anyone have any suggestions on what it could be? I don't think I could be prego... But what would you advise I do?