Hello I am 26 years old. My menstrual cycle is for 28 days on an average. Last month period date is 14th June and recently on 12 July. We had an unprotected sex on 19th July. Are there chances of pregnancy. In case if I take ipill within 24 hrs, does it work and will it have any effect on next month menstrual cycle (a week earlier or week later. It?s an unplanned one and we are not planning for one more baby. Please help.