I have been on the same birth control for almost a year now and it has worked very well for me. I haven't had really and breakthrough bleeding. Just recently, I found out another medication I take, topamax is making my birth control much less effective. My doctor told me to be very careful. Well after my boyfriend and I chose to have unprotected sex once or twice (I know so careful) we stopped for over a month. Now that I'm supposed to be on my period I'm having a very light brown very wet discharge. (hope that doesn't sound stupid) help :?