Priya bete relax! Emergency contraceptive pills do affect the menstrual cycle so it's not surprising for periods to be irregular after the pill. These are for EMERGENCIES only. Please use a condom next time. Read here: https://lovematters.in/hi/resource/safe-sex https://lovematters.in/hi/birth-control/top-10-facts-about-emergency-contraceptive-pills 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