Hi, I had sex in august 3rd week(protected sex as far as i know) and got periods in 4th week on correct time, now am supposed to get in the month end of september or (Oct 1st week) but till now i.e Oct 8th I did not get my periods donno whats going on wid me though I have spotted 2 or 3 drops of blood on Oct 8th. Generally I get my periods on a regular basis and for 5 days. Can sumone pls help me wid my problem