I have been on Lutera for just about 2 years (and before that Aviane for about 4) and always use a condom as well. But one broke about a week ago. I am mostly confident in the pill, and I have only taken 2 or 3 late (by a few hours) in my life, and every pill on time this cycle. Should I be worried at all? I am not on any drugs that may interfere... but I did read that caffeine affects the drug. Is that for pregnancy prevention uses? Or does it effect the way the drug makes you feel (ie. headaches, etc.). Just paranoid over here, I am usually so careful!