I'm very sorry for your loss Sarah .
I was a bit sore after my D&C. As long as it isn't severe pain or your bleeding isn't bad I would think it is an after effect from the procedure. A specialist once told me that you can never tell how your body will react after a procedure no matter how minor or major it was. It may depend on the skills of the surgeon, the anaestetics used or just your body on the day. Resting is the best thing right now.
Xx