i started Yaz Birth Control 11 days ago, took the first pill the first day of my period. within taking the birth control for 6 days (i didn't take it at the exact time everyday but i did take it everyday around the same time and when i forgot i took it as told to in the booklet) i had unprotected sex with my boyfriend and he came inside me. at that time i was also on my period. i had my period for about a week which is normal but i've been having some slight dark brown discharge for almost a week now after my period ended. could i be pregnant? or is this a sign of an STD? help please xx