Sorry for your loss.
It can take numerous weeks for your body to catch up with the miscarriage.
You have three options with MMC. Either wait it out, opt for medical management or surgical management.
EPU should go through these options with you and give you leaflets so you can think things through and decide what's best for you.
Medical management is either pessaries inserted in to your vagina and put near the cervix to open it up a bit and encourage the miscarriage along, or an oral pill (I think) which does the same thing... I think. I'm not certain about the oral pill because I had the pessaries. I was told there's a 10% chance of it not working. Unfortunately in my case it didn't work, twice. There are side-effects too, which you may or may not get. I had chills, mild period pain, diarrhoea and felt sicky for a few hours and was laid up on the sofa for two days. If it works it should take effect in 4-6 hours, you start to bleed and can have what they described as bad period pains, and should normally pass the pregnancy as though it was a bad period with clotting. (Although this is not how it panned out for me). I originally wanted to do it this way because I felt it would help me to grieve the loss more easily.
The surgery is done in a day and you should normally be sent home about an hour or so afterwards. I was given tablets to soften the cervix. I was put to sleep and when I woke up they told me that it was all over. I did have strong but not unbearable period pain for about an hour and bled a fair bit in that time, but then the pain pretty much disappeared and I had what seemed like normal period bleeding for a couple of days. I've had brown spotting since then. Mine was a week ago.
If I have to make the decision again I would opt to go for the surgery again straight away. Waiting for it to happen naturally can be really tough emotionally and the medical management seemed more invasive and drawn out than the surgery. Although I felt groggy from the aesthetic afterwards, I felt like I got back on my feet much faster after the surgery than after the medical management. And although I felt I would grieve the loss better if I passed the pregnancy myself, the hospital send the pregnancy to a crematorium and that was comforting to me.