I have been on the birth control pill, i recently stopped taking it and had my period like i regularly would, I didn't start my pills after that. My boyfriend and I have been having unprotected sex every day. I noticed a brownish bleeding today, It has been 13 days since my last period. Could this be another period or a sign of pregnancy? according to those ovulation predictor charts im not supposed to ovulate untill tomorrow. My period isnt due for 14 more days? Whats going on? When would a pregnancy test be positive? Please HELP?