Thanku for writing in HMC, firstly we need to know how are your cycles, regular or irregular, comes in how many days and lasts for how many days. most women have periods every 28 days lasting 4-5 days. this may vary from individual to individual due to various factors like hormones , stress, food habits etc. most women complain of irregular cycles for 1-3 months after taken an emergency pill(unwanted pill) .ovulation occurs between the 9th-18th day (or 14 days before the expected next period date). you have had intercourse on the 7th day and your next period has come 14 days before the next expected period(14th dec) which is not usual. next period should have come on 29th dec (taking your last period date as 1st dec), however irregular periods are common like i said in many women. clots and pain with heavy bleeding could suggest an abortion if at all you had concieved. wait for the next period and see if you still have discharge and uncommon symptoms. if yes, get a scan done or consult your gynecologist. thank you