Two weeks ago I had unprotected sex with my boyfriend and the next morning he was scared that precum may have gotten inside me so we got plan b. For the past few days my breasts have been slightly tender and I've had off and on stomach pains. I fear that I was ovulating either the day of, or the day after we had sex. My period is supposed to start Saturday but I would like to know the likelihood of me being pregnant. (I've been so stressed these passed two weeks please help me)