Don't be so afraid of it Karan beta, sometimes period are too late because of stress, tension or hormonal changes... already 12 days passed so the best would be to immediately find a doctor. And if you have any doubt about pregnancy- rather virtually seems no chances of it in this situation- do a home pregnancy test and be sure. OK!! https://lovematters.in/hi/pregnancy/home-pregnancy-tests-dos-and-donts If you would like to join in on a further discussion on this topic, join our discussion board, "Just Ask” https://lovematters.in/en/forum