Hi, I'm 22 years old and have been on birth control for close to two years. I started taking BC because of period related issues. I make sure to follow instructions and always take the pill at the same time. I also don't miss any pills. My period has been unmanageable lately. Usually is very regular, with only a few days difference between the start date. Last period I had was about two weeks early, something completely strange for me. And it was one of the worst periods I've had. Cramps nearly every day that left me nauseous and exhausted, and a LOT of blood. Three days after it ended I had intercourse with my boyfriend. Normally we have no problem with moisture, but that time I felt so dry and it was very painful. I got home and I wiped and there was no bleeding, and no discharge. Two days later there is a pinkish discharge every time I wipe. I have taken several pregnancy tests and they all come out negative. Could I still be pregnant or is this a sign of something else?