subchorionic hematoma

I recently went to the doctor because I had found out I was pregnant then started bleeding and was in so much pain I swore I lost the baby but was still getting positive tests...

After a few blood tests and an ultrasound, my baby is still in there and has a healthy heart beat and it turns out I have a subchorionic hematoma... My doctor called and told me that but didn't say anything about it or answer any questions and I don't go in until next month.

Can anyone tell me more about what they experienced with a hematoma?

I'm still spotting here and there and having pain... I'm very worried that I'm going to lose this baby and I want to know what I should expect as normal in this situation...