I Was Taking Femilon Pill Earlier 05 Th Sep Siince

i was taking Femilon pill earlier 05 th sep siince last one year, but after that i stopped taking it. my last LMP was 5th Sep, 2015. I had unprotected sex 28th of Sep. After that i took unwanted 72 pill after 48 hrs of 28th sep. still i was not taking any kind of birth control pill. till today i am not having any period. do i have already pregnant due to missed period? please advise