OK I don't know if I was pregnant, I'm on the pill, I've had a pregnancy test a month and a half ago by the doctor, I've also had altra sounds, I started bleeding heavily a week before I was due for my period, it lasted 3 days, stopped and returned a day later, so now I've been bleeding for 2 n a half weeks, most days its really light and a pinky brown, and other days it's a bright red, I also have bloodclots, I don't know what's going on, I've never had a misscarriage before.

There are just too many possible answers. You will have to go back for a complete exam to try and figure this out.

Did you recently start or change the type of pill used ?