My last menstrual period is January 10,2012 it takes about 4days. then my boyfriend and i had sex last February 8,2012 and i have my light white discharge, 6 hours after we had sex i take PILL which contains (ethinyl estradiol, levonorgestrel and ferrous furmate). My period is usually irregular. Today, i am 14 days delayed. I got 4 pregnancy still i got NEGATIVE results. Does unwanted pregnancy still preventive? Does menstrual period still occur when i took pills? Thanks! :)) Your opinions and answers will be highly appreciated .. :))