I'm sorry for your loss. I, too, had a miscarriage on December 6th 2007. My doctor told me to wait between 3 and 6 months before trying again.
He said that the uterus needed time for the lining to thicken and be able to carry a baby to term. The body will get pregnant when it is ready.
We are going to try again in March; that will have been 3 regular periods after the DNC.
I know this is a VERY hard time for you Sweetheart, please know that you are not alone.
sorry about your loss. are you trying to get preg again?