Please help! i don't want to be pregnant but my period is delayed and i'm worried sick. my last menstrual period was last Aug 19, so i expected my period to come around Aug. 19 too or within last month, but it's already sept. 2 and my period is still absent. my bf and i had sex last aug. 16th but he did use protection. i also took a pregnancy test last aug. 30 and the result was negative. HELP!!! PLEASE also i don't "feel" pregnant though, im just worried.