I stopped taking birth control (Nuvaring) halfway through my cycle. A week later I got a period (not spotting). It has been almost 5 weeks since the first day of that period. I took a home pregnancy test yesterday and it was negative. Now I know that stopping BC can mess up the menstrual cycle because of the change in hormones, but since I got a period immediately following the cease in BC and the pregancy test was negative, I am very confused as to why I'm late on my period! I'm not under any undue stress or anything...any answers?