Wednesday I had intercourse with my partner and I noticed a little bleeding after, I didn't think nothing of it because it's happened before. The following Saturday I started spotting kind of like a period only a little bit lighter its been on going since Saturday and today is Wednesday again and still going. I don't think I'm pregnant because I'm on the pill. And I'm not suppose to start my regular period till next week. But I'm also taking phenteratine a weight loss supplement. This is really starting to scare me could I be pregnant? Will this stop on its own?