So sorry you're going through this CaliBee. I had a similar-ish situation recently - had bleeding very early on (5ish weeks) so went to EPU. First scan measured very small so sent away and told to come back in ten days. Second scan there was a foetal pole but no heartbeat (even though there should have been).
Had to go back on Christmas Eve for third scan. In the interim period I started bleeding - beginnings of miscarriage. At scan was told there was still no heartbeat but that as there was still tiny foetal pole had to wait until 3rd January, even though I thought they would be able to confirm miscarriage and offer me medical/surgical options.
On the 3rd January had my fourth and final scan where they confirmed that nothing had developed and foetal pole had disappeared. Went for ERPC four days later.
I absolutely sympathise with your situation. The waiting and worrying are awful, and you feel so completely consumed by the situation you're in you can't focus on anything else.
Please make sure you look after yourself - do not go to work. I am a teacher, and was really worried about going back to work, panicking about classes etc but in the end I took just under two and a half weeks off in addition to the Christmas holidays (going back this Wednesday). My GP was so understanding and insisted I took the time I needed. Whatever happens you need to give yourself time to grieve, and give your body time to recover.
A very insensitive friend said to me that she was surprised I hadn't gone back to work yet given that I had so long to get to grips with the news that my pregnancy wasn't going to continue and that perhaps it would be better to distract myself (!). My approach was to distract myself by meeting up with (sensitive) friends, going for the odd lunch, going out for walks etc. I found holing myself up with my thoughts wasn't healthy or helpful for me.
I also found it helpful to talk to friends who had been through miscarriages too, even though we all had very different experiences. I hope things improve for you soon, and send you a big hug.