My gf had her periods on 27 august to1 september. we had unprotected sex on 2nd sept , on 3rd she took i pill. then again on 4th we had unprotected sex and she took unwanted 72. On 11th she had withdrawal bleeding for three days in very less amount. My question is that when will she have her periods? Is there any chance of pregnancy? and how many days after periods, count as safe sex period or duration? Is withdrawal bleeding indicate no pregnancy? plzz answer