Last month I got my menstrual cycle around about the 15 of April. About 2 weeks later I had unprotected sex with my boyfriend. About 2 weeks later I got my period. This is very abnormal for me. My period came 2 weeks early. Now its almost time for my regular cycle time to come. Far as I know I haven't expierenced any signs of pregnancy, nor have I taken a pregnancy test. Could I possibly be pregnant? And if not why is my period coming so early?