I've just been through this. The waiting period is the worst - which is why I opted to have the d&c (although as it was 6 days after the first scan, I did give my body the opportunity to do it naturally).
In my case I only found out when I went for the CVS - I should have been 11+ weeks, but the scan onyt showed about 6 weeks (although I'm told it could have happened any time and shrunk back to 6 week size). I went back a few days later (Friday) to confirm that the sac was getting smaller (even though I was sure of my dates) and you could see it collapsing in on itself - in a funny way, that was quite therapeutic. The d&c was booked ofr the Monday.
I tried going in to work during that first week (the Tuesday and Wednesday), but couldn't concentrate and realised I should be looking after myself better. I ended up "working from home" on the Thursday and Friday - intending to log in at intervals, but only did so the once.
I took Monday and Tuesday off and went on the Wednesday (against my boss's advice) - and was a waste of space. Thursday and Friday I was out of the office anyway on "nice" business (corporate hospitality), so it was more a treat/relaxing.
This week I am making myself work short days - trying to leave at 3 (only moderately successfully) and not put myslef under too much pressure. We are very short staffed at the moment and people are off on holiday, so there is a lot to cover. However, I am very conscious that it is most important that I look after myself FIRST.
Like you Bossykate, I feel OK physically, and mentally think that I am coping.... probably....!!!!?? But I know that there is more going on in my head than I want to admit. Hence me trying to be sensible.
Fortunately I have a very supportive boss, who told me off for coming in last Wednsday (but he will probably still be tough with me in my appraisal on Friday - I could do without that!). My colleagues have also been great. I got one good bit of advice from one of them, who went through a miscarriage herself years ago to take things one day at a time. One day you might feel fine and the next (or even the next minute), for no obvious reason, you're in tears.
Hugs to you both. It's a strange and unsettling time.