Hi.actually last I had my periods on 27 July.after that on 12 aug me and my partner didn't xactly had proper sex... but his semen was there on my vaginal parts.as a precaution I took unwanted 72 within 2 hrs.on 17 aug I had bleeding for 2-3 days. But after that till now I am not getting my periods.I m worried.plz help.wen will I hv ma date for getting my periods.is it normal to be this delayed.