Hi, I had unprotected sex,due to condom ruptured while having sex,on 16th morning.I took i-pill in 16th evening.Now,Its 17 night neither I had any bleeding nor any side effect symptoms.My last period date is 29 Nov.to 4 Dec,Now I am worried if this may lead to pregnancy ... Is it essential to bleed just after intake of i-pill to not to get pregnant.