Hi, Had periods on 19th august, so next cycle must start on 19th sep. But had unprotected intercourse on 17th sep. Husband didn't Ejaculate inside me. Today I s 22nd sep, I did not get periods yet. Could I be pregnant in this case? If yes, how can I avoid it. I am not ready to be pregnant yet. Please suggest a tablet to avoid it. Note: - its been 3 days my periods due date is passed -Its been 5 days, had intercourse - 17th is the only time had intercourse in last one month. Thanks.