So sorry to hear that, very sad.
When I had my first mc, which was a mmc discovered at 12 week scan, I just took a lot of comfort from the support of my family. I also thanked my lucky stars that I had one healthy and happy child already. I even said to the hospital staff, there are people a lot worse off than me. I know it's hard, but I did find that focussing on the good things that I do have really helped. My second loss was earlier and I had bad feelings from the start as continual brown discharge from BFP. That didn't seem to have much effect on me.
Hug your little one extra tight tonight.