Heavy bleeding and clots 10w

Friday on lunch(1230) at work I had a big gush of blood with clots. There was so much blood it quickly saturated my underwear and pants. I left work immediately and tried to go to my OB, who is literally 5 mins away. They had to turn me away as they didn’t have the capability to care for me if I was having a miscarriage. So I drive myself to the er and I’m there by 115pm. My husband gets there and the doc sees me, he orders me an ultrasound and blood work. We get to the ultrasound about 230/3, the bleeding pretty much stopped but I was still passing clots. Unfortunately the ultrasound tech isn’t allowed to tell us anything, we have to wait for the doc. When we get to the doc he says the ultrasound looks normal and they found a heart beat @160. But couldn’t explain why I was bleeding. I am RH negative (I’m O negative and husband is O positive) so they order me my RH shot.

Yesterday I was spotting but not on a pad only when I wipe did I see it. It seemed to stop last night. This morning I had brown discharge, only when I wiped. And now I’ve been having bright red blood, but only when I wipe. Has anyone else had this happen? I read that if they found a heart beat that is a very good sign. But I honestly can’t help but to sit here and worry☹️