My girlfriend and I have been in a monogomous relationship for fifteen months now, and we have been sexually active. She was recently on birth control, but stopped taking it on November 26 because the pills were very negitivly affecting her during her PMS. Our relationship was rocky, and the details are fuzzy, but sometime soon after stopping the pills (a few days) she got her period. Her period ended, (we BELIEVE) on December 6. On December 17, she and I had unprotected sex on-and-off. I did not ejaculate in her body. We checked to ensure my penis was dry every time we put it in. However, we were still concerned. December 19 at 1:00 PM she took the first pill of the two-pill Next Choice Two Step. 1:00 PM was 42 hours into the 72 hour allotted time-frame. Today is December 23, and her and I are very worried. We are not entirely sure when we should expect her period, and we are nervous. I need some peace-of-mind from a professional opinion. Do you believe she could be pregnant?