Emergency contraception pill is used to prevent pregnancy after unprotected intercourse around the ovulation time. It is taken within 72 hours of unprotected intercourse, also this pill is used when condom ruptures when the person forgets to take her oral contraceptive pill, when there sexual assault or rape. Risk of pregnancy around the time of ovulation is 8%, mode of action of the emergency contraception pill, ovulation is prevented or delayed, fertilization is interfered, implantation is prevented rendering endometrium unfavourable. It also interviews in the Corpus luteal function , the side effects of emergency contraception are nausea, vomiting, mastalgia or breast pain, breakthrough bleeding or withdrawal bleeding or intermittent spotting is very common. Major rare complications can be depression, hypertension. The failure rate with emergency contraception pill is 0.1 per 100 women years. Now how do you manage is intermittent bleed, the bleeding usually last for 5-7 days and stops naturally, but your next cycle gets affected due to the hormonal imbalance. Your weight, stress exercise, PCoS can also influence your period. Use protection to prevent pregnancy, take the urinary pregnancy test if your periods get delayed. Meet your doctor if bleeding is prolong for 10 to 15 days you think you might be pregnant as you are feeling the pregnancy symptoms like nausea vomiting, if the period is delayed by more than 7 days unusual period which is shorter and lighter or sometimes there is an unusual lower abdominal pain this could be a tubal or ectopic pregnancy.