Hi Doctor, I am 23 years, I had sexual intercourse with a guy on on the 16th of May, we used the withdrawal method and I used emergency contraceptives(postinor 2) like 2hrs after the intercourse. I saw my period normally as expected on the 5th of June as expected with the normal flow and mentsrual cramps , I haven t seen any period dis month of july..I have had three hpts, all negative..am confused, what are my chances of being pregnant?