Anne,
I am so sorry to hear of your tragic loss. happiness and despair all in one day you poor thing.
I have suffered through 2 m/cs. i had one curette (D&C) with the first one and ended up having 3 for the second due to complications. All of mine were done as a day procedure under general anaesthetic. I do take a LOOOONG time to recover from GA but a lot of people are up and about within a few hrs. As others have said, the procedure itself should be relatively simple. They dilate your cervix so they can insert small suction instrument and i guess in crude terms "vacuum out" the contents of your uterus. Some people suffer cramping/discomfort much like AF pains afterwards ( I certainly had quite severe cramping but not everyone does) and you will most certainly have some bleeding for approx 2 -3 days or possibly up to 1-2 weeks. This is usually like a lightish period.
Didn't mean to scare you with too much information but it is good to know what to expect if you do happen to need D&C . Hopefully not although they are not that bad so don't worry too much.
There is some thought that you are actually more fertile after a D&C although I would still wait at least 1 normal cycle prior to TTC again to let your body recover.
I hope all turns out ok for you and that you are holding a beautiful bub in your arms very soon. let us know how you are doing. The women here are very supportive.