My wife had periods from 1st may to 5th may. The bleeding was only one to two drops a day.(very less bleeding as compared to normal). After two days from her periods on 7th may we had unprotected sex at night time. In next day morning means 8th may she took one unwanted 72 pill. After 7-8 days she had started bleeding for two days means bleeding started and stomach pain from 16th may and also on 17th may (today). Is this bleeding periods or reaction of the tablet? If this is periods then when will be the next periods? Is there any chance of pregnancy?