I had unprotected sex with my partner on 28th april. nd that was my 4th day period...nd I took unwanted 72 with in 2 hrs....nd after some time I watched some blood there....but usually my period tym 3 or 4 days.... but it is 26th may nd I still not get my period...my date was 25 last month nd more important there's no particular date..it moves....is there any chance of pregnancy or not...I don't wNt to be pregnant.... is the pill reason for delay period?? then how long???