Out of curiosity, I was wondering if the withdrawal bleed 100% means that you aren't pregnant. My pill pack insert makes me believe so (and I'm not worried about myself, I take my pills at the same time every day and haven't missed one), but I am hearing things from other people saying that it's still possible to be pregnant and have this monthly bleed. I was wondering if that information is accurate, because, if I'm not mistaken, won't the pregnancy hormones stop someone from bleeding eventually? The people on the main page I get this info from are a mixed group of women all on some form of birth control, and some are GYNs. However, my GYN said that as long as I get the withdrawal bleed, I'm not pregnant, and unless I miss two or more in a row, it's highly unlikely. Why are there opposing/contradictory thoughts on this and which is right?