Welcome Wowzer, im very sorry for the loss of your angel.
In answer to your question, when your ready. My doctor told me that there is no physical or medical reason why we had to wait one or two cycles, and that we could try straight away if we were mentally ready to do that. Others say wait. If you had a D&C then you are very fertile straight after, hence the reason not to wait for a cycle.
Please take care of yourself, and your partner and keep posting, its the best way to start healing.

hugs
treelo