I had a D&C two weeks ago and you need to wait that your levels are 100% DOWN and negative before even thinking of conceiving because you may have extra tissue inside without knowing and the new baby won't implant because of it so PLEASE!!! Let them due a good ultrasound and make sure you have NO SCAR TISSUE/EXTRA TISSUE so you won't have to go through that again ok!!!
I'm waiting at least two cycles... it is worthit!
When I had d&c, I was told to wait at least one cycle before starting over....your hormons need to come down completely and it takes about 6-8 weeks sometimes...plus, your body needs to heal before starting over. So I would say wait 1 cycle, get your menses and then start over :)