Im sorry as well, I had a misacrriage at the end of april and found out i was 2 1/2 weeks preggo on June 5th. Like Heatherm4 said it all depends on you. I had gotten back on the pill and had only taken it for a week when i found out so i wasnt trying it just happen..hes now 2years old.
Some people will wait 3 months until they get their cycle back on track and others will try and get pregnant right away. I guess it all depends on how far along you were when you miscarried and how you feel physically and emotionally. Sorry for your loss.