Hi, I've been on birth control for about 6 months now and since I've started it I have not had a period. I started taking birth control to help with my horrible cramps which clearly did the trick. I have accidentally missed some days but never had break through bleeding until recently I have had the horrible cramps again for the last 4 days no blood just a brown discharge. And I noticed two days ago when I whipe there is light pink on the toilet paper but its barley there it's nothing like a period. I took 2 pregnancy test a week before I started getting cramps just to make sure everything was still good since I haven't had a period for so long they came back negative but what could be causing this? Any ideas? Please help... Thanks in advance:-)