I had unprotected sex on 25th of July. I took an ipill within 12 hours of having sex. I used a pregnancy kit after 8 days of getting intimate and according to the test I'm doing fine. Today is 6th july and I have extreme pain in my legs since the day i took ipill. I also have a frequent lower abdominal pain and i keep on feeling like vomiting. It all started after i took the emergency contraceptive. What could be wrong with me?