I had sex thrice after my period ended on 2nd of october, and I had sex the. Next week,my boyfriend told me no need to take postinor 2,becos egg have not develop,and I did not take,so I had another sex twice.d last one that make it twice was on the 31st of october.den I took the postinor 2 on sunday.til now I have not seen my period pls I need your advise.