Hi, According to your history the possible causes for inter-menstrual spotting are: - As you have taken the emergency contraceptive pill, that can lead to the withdrawal bleeding by acting on the endometrium which can present as inter-menstrual spotting followed by bleeding. - Sometimes during the ovulatory period spotting can be seen as part of mittlesmerz syndrome. - Sometimes unprotected intercourse can lead to pelvic infection which can present with cervical erosion, leading to spotting associated with foul smelling vaginal discharge. If the discharge associated with smell is persisting, better to get examined once. So, please consult your gynecologist once and get examined. By clinical examination and investigations like pap smear, vaginal swab for culture and sensitivity the possible cause of your problem can be identified and treatment can be taken accordingly. There should be at least two month gap between two emergency contraceptive pills to prevent menstrual irregularities. Take care. Hope I have answered your question. Let me know if I can assist you further. Regards, Dr. Sree Gouri S. R., OBGYN