I recently took an emergency contraceptive pill. I took it while I was on my period, and that period has now lasted for 10 days. My periods are usually 6-7 days with normal bleeding. This period has been light in the beginning, then I thought it was almost over but around day 7 it started to become heavier and with more clotting. I have taken the emergency contraceptive pill once before about a month ago due to a broken condom. What could be causing this prolonged period? Help!