My regular period is every 25, 26, or 27 or before end of the month. I get unprotected sex day 14 and by morning before 12 hours, I take birth control pills 1 tablet. And in the next day,again I take 1 tablet. Today is date 29, it was 14 days past since I took that pills and still my period is not coming. It is possible I am pregnant or it is normal to be delayed my period, but I feel the pain in my breast now.