I have been on sprintec for about 2 years now. I stopped taking it in the beginning of my second week on the 6th of March. I had unprotected sex on the 8th of March. The next day on the 9th I started withdrawal bleeding probably due to stopping my pills but I am still bleeding and its been a week now. I am wondering if the withdrawal bleeding confirms I won't end up pregnant from having sex on the 8th??