I have been on nuvaring for five years and I have never forgotten to take it out on time. I keep it in for four weeks and have a week ring-free before I put another one in. I was supposed to take it out Friday, but forgot and didn't remove it until just now. I had sex last night.
Everything I have read says if you leave it in for longer than four weeks you could be pregnant. I don't understand why that is..isn't leaving it in for a couple days equivalent to being ring-free since the hormones are really low after four weeks? Can't I just put a new one in on Friday and be good?