hello, my girlfriend and I were fooling around about 3 weeks ago. I was inside her for a matter of seconds a couple times unprotected, and we were very close touching/rubbing without clothes on so we are both nervous about something possibly getting inside her and causing a pregnancy we are NOT ready for. She had a day late period (guessing because of the worrying & stress) but noticed that her breasts feel bigger and sore. Normally she never has pre menstrual symptoms that affect her breasts. She also felt bloated and started bleeding. We're both relieved, but I am still worried about it just being pregnancy bleeding? She told me it is a little darker, not spotty, and heavier than normal. What do you think?