Hi, According to your history as there was no contraception, especially barrier type at the time of intercourse, the possibility of STD cannot be excluded. Infection due to unprotected intercourse can present with vaginal discharge, local genital lesions and urinary symptoms. Taking emergency contraceptive pills during the second half of the menstrual cycle can postpone the menstrual periods, but the tablets may not be directly related to genital infection. If the symptoms persist better consult your gynecologist once and get evaluated. By clinical examination and investigations like vaginal swab for culture and sensitivity, pap smear, urine microscopy and urine culture and sensitivity, the possible cause of your problem can be identified and treatment can be planned accordingly. Both the partners should be treated simultaneously to prevent future cross infections. Take care. Hope I have answered your question. Let me know if I can assist you further. Regards, Dr. Sree Gouri S. R., OBGYN