I got caught up in the heat of the moment last night (7/11) and had unprotected sex with the GF. She was on her period last week and is on the pill. I haven't asked but I"m guessing the first day she took her pill was Sunday. Everything I've researched says that she should be ovulating roughtly 14 days before her next period, according to my calculations that should be 7-19. What I'm curious about is if Plan B would do anything or if her normal birth control will be fine. Also what are the odds that she would get pregnant this quick after her period.
If she is on the pill, she does not ovulate. She however needs to take her pill for 7 days before it will be effective. (only the very first time, not every pack). If this is the first time she is using birth control pills, she should immediately take Plan B.