Sir,I had last period in aug 19 th 2014 on 25 th i had unwanted 72 aftr 48 hrs of intercourse,my usual periods date is between 27-29 in end of every mnth bt in aug i had period earlier i hav taken un72 in small duration, i hav used it earlier tat mnth also ,nw itz 29 of sept i didnt had my periods i m very worrid....i never had periods problm before using un 72 plz help