So sorry for your loss.
I had my D&C on Tuesday and I was back at work on Friday. I work in an office, so I sit down most of the time. I went back so quickly because at work nobody knew and I just told them I had a tummy bug. It was my way of living my loss "Privately". Physically I was fine (no cramps, no pain, just bleeding, like period), but emotionally I was a wreck (still am when I think about it).
Working helped me "not to think" about it... I concentrated on my job and for 8 hours I was like another person, like if it didn't happened to me. Of course it was silly, but it was my way to react to my loss. There is no day I don't think about it, even though now I am pg again. so take your time... it is just work and it can wait, what can't wait is you taking care of yourself and prepare for the future. REsting and taking care of yourself now, will help your body to have a quick "physical" recovery, the emotionally is another issue.
lots of hugs to you and your partner (he is suffering too!)