I've been on birth control for 3 years, and I take my pill every evening at the same time and have never missed a pill. My fiancé and I had sex two days ago where he used the pull out method. As of yesterday, I've had a brown discharge without any blood (similar to what the discharge looks like right before you start) for two days now, and I'm exactly 1 week away from when my period is due (because of being on the pill, I know that I'll start on a Wednesday). I always experience the brown discharge the day before my period is due, but since i still have a week to go, I'm very frightened because I've never experienced this so early before. I've read several articles saying it could be due to different things. Is this brown discharge cause by implantation bleeding, because I just recently had intercourse, or is this a normal thing?