Had bleeding, no cramps, and couldn't find baby b heartbeat...

I go to my dr tomorrow morning to confirm what the dr at the hospital said about losing Baby B since they couldn't find a heartbeat. I stopped bleeding yesterday and had some spotting today. I didn't have any cramps. I get an ultrasound tomorrow to make sure Baby B was passed or got "absorbed" as the dr said.
I really want to be hopeful and hope for some miracle. That maybe Baby B is okay. What are the chances? I never had a twin pregnancy before and don't know much about it. Like my post about it before said, I left the hospital with more questions than answers :(