got drunk n apparently had sex. found out he hadn't used a condom the whole time, dimwit. anyways I took plan b about 32 hours after the mishap. I experienced sore breast the first week. it is now two weeks since I've taken it and no bleeding has occurred and I was spose to get my period and I haven't. I've been stressing out alot cuz my friends mom died and I do not want to be pregnant. help please!!! I took a pregnancy test a week after n it was negative. also have been having back pain