Missed marriages?

So recently I was told the baby didn’t have a heartbeat at 9 weeks so I’ve accepted and learned I was having a miscarriage. It’s been a few days and I’ve yet had a process of miscarriage. I continue to feel alll the pregnancy symptoms I’ve had.

I know it’s wishful thinking to think the doctor got it wrong. Cause for how far along I am. There should be some cavity activity but I just feel in my heart. The baby is still alive.. what should I do? Accept it all and know that I won’t have bleeding or get a second opinion?