Okay so I had my period on oct.10th and it ended on the 13th, the same day the incident happened. Took plan b on the 15th. Had symptoms such as abdominal pain, and headaches but that seems about it. 5days after had bleeding (normal I know). Took a preg test 4 weeks after incident and came out neg. than took another one a week later and again got a neg. than that night I got my period. Thanks goodness!!:) but I'm still experiences slight abdominal pain and back pain, also headaches and some arm and leg pain but ever slight and maybe once every hour. What could this be?? Still symptoms from plan b? Pregnant? Something else wrong? Please help me!!