Hi Doctor, I had unprotected sex during my ovulation period on the 8th of the month (I kept track on menstrual cycle app but I forgot) , I took postinor 2 immediately during the first day, 11.30pm and 12 hours later 11.30am. Every was alright but I had been feeling fatigue until 5 days after eating the pills, I bled for 3 days heavy flow to light flow. My period usually comes at the last week of the month (23rd-30th). Is there a high possibility that I m pregnant?