My girlfriend last period date is 13 August and her period ended on 15 August and the. We had unprotected two sessions of intercourse on 17 August that time ejaculated in her vagina almost two times whenever I ejaculated in her vagina she washed her with water in washroom and we had two intercourses on 17 August and after doing unprotected sex I given her I pill immediately after within 2 hours of sex and on next day 18 August wel also had sex but this time we use protection like durex ultra thin condom on this time we had 2 sessions of intercourses back to back having 30 minuets or 1 hour gap and now this month period are almost delay upto 7 days her period coming date is 13 September still her period not comes I am so much worried why periods are not due to I pill effects how much days of periods delay happen after consuming I pill my girlfriend is 18 year old and I am 21 year old please and how much day will take to come her period?