My last period date is 24september and I do protected intercourse on 26 September and I take pregnancy test on 30 oct and 6 nov twice after missed periods it will be negetive. My expected date of missed periods is 24 October to 28 October and  I consult with a doctor they recommend me premolut n tablet for twice a day for five days and today was 4th day after stop course but still my periods not come can u please tell me when my periods come after stopping the tablet?