Heavy bleeding

So at 11+5 I all of a sudden had a gush of bright red blood. Immediately went to ER where they told me I was most likely having a miscarriage. Then did an US and there was baby perfectly fine!!! So relieved! Turns out I have a subcorionic hematoma that isncausing the hemorrhage but baby should be fine. So scary but wanted to share as a little reassurance, hope and information to anyone else who may have the same scary experience.