Could I Be Pregnant When My Periods Are Delayed By 5 Days After Taking Unwanted 72 Once But Not After The Second Unprotected Sex?

Hi my periods are delayed by 5 days. Had unprotected sex with my husband after which I took unwanted 72. Week later we again had unprotected sex, but didn t take the pill again as I was expecting my periods. However it s been 5 days delay n m quite worried. Please help