I have been taking Yaz birth control for over 9 months now. Because I was late on obtaining refills for this last pack (I had to get my OBGYN's approval for more refills), I started the pack 2 days late - last Friday (April 2nd) when I was supposed to start the new pack on Wednesday (March 31st). I took 2 pills when I started the pack on that Friday (April 2nd) and another 2 pills on Saturday (April 3rd). I know the instructions recommended for a back-up method of BC for the next 7 days, but I acted stupidly and had unprotected sex with my boyfriend that Saturday night (which is last night). I took my scheduled pill this Sunday morning. However, I am a bit concerned with the chance of getting pregnant. Do you think it is pretty high? I know it has been within 72 hours and I could take the "morning-after" pill. If I do decide to take this pill, do I take it along with my scheduled Yaz pills? If so, does this "morning after" pill decrease the effectiveness of the Yaz pills for the next month? Thank you. I really appreciate your comments on this!