hello. quick question for anyone who can answer. i have been on birth control for about two years now; however, at the start of my pack for the month of may i missed the first two pills. i then had unprotected sex eight days after taking the first two pills. my boyfriend did not cum inside me; however I was still nervous because about four days later i started feeling dizzy and had bad headaches. i got my period on june 9th (friday) but it only lasted for about two days and it was very light on day two. i usually get it on the wed or thurs of the reminder pill week. could this have been implanation bleeding or is it possible to have just had my period for two days?