Hello. I have been taking postinor 2 5 times in 2 months ( early of March to mid of April). and within that 2 months i have not seen my period for march and april. i have no specific dates for my period. i cant predict. Anyways, i was scared, so i stop taking it. now on May, i still am not seeing my period. What is wrong? I dont wanna get pregnant or be infertile. and i wanna know how relevant is birth control pills compared to emergency ones like postinor? im sexually active.