Hello Doctor . Me and my girlfriend had unprotected sex on 10-July-2016 and on the same day she had ipill within 5 hours than later on 18-July-2016 that's after 8 days we again had unprotected sex and on same day she had ipill within 6 hours and her period date was on 21-July-2016 and she had little bleeding but I think that wasn't her period . Till now she haven't got her periods and those days when she took ipill she was on her prescribed medicines for her acne will the ipill had turned ineffective because of that other medicine please Doctor explain me in brief I am getting worried about her is she pregnant or not please help I would appreciate it. Thank you !