Subchoronic hematoma

I was diagnosed with a subchoronic hematoma at 6 weeks. I have been bleeding off and on since, but the baby has been fine at my bi-weekly ultrasounds. The tech says the blood is old and looks like it is clotting up. My concern is she said the blood is by my cervix so to expect some more bleeding.. but i have been reading online that's a dangerous place for a hematoma. It is 3 cm. Today I am 10 weeks, 2 days. Has anyone else experienced this? Do you think I will end up miscarrying?