You need to wait 1-3 cycles. This allows you uterus time to heal. Your doctor should have given you an appropriate timeframe for when you could try again.
From what I have heard a woman is more fertile after a miscarriage or having a baby. However, most docs say to wait 3 monthly cycles to let the b ody recover befort ttc again. But that I said I have had a miscarriage in the past and got pregnant straight away and gone on to hacve a healthy baby, but I did not need a d and c it was a natural miscarriage. I am sorry for your loss. A lot of us here know and understand what you are going through Good luck