I've been having really bad abdominal pressure on my right side. There is a possibility that I am pregnant, a couple of days ago I started bleeding. First I was spotting, then it stopped. The next morning it was really heavy and clumpy. The day after that I stopped bleeding but the abdominal pressure was still there. Did I miss carry? I still have the pressure but now it's moreof a sharp pain. Is it possible that I had a miscarriage?

It's possible that you miscarried, but there's really no way for anyone on line to tell you if you did or not. It could just be an off period, it could be a miscarriage, and it could be hundreds of other things.

You'll need to see your doctor.