Who started trying again RIGHT after a miscarriage??

Did anyone start trying even before they got their first period after a miscarriage? How successful was that? I just had a MC almost 4 weeks ago, I just got a lot of fertile CM yesterday but bbt chart hasn't confirmed ovulation yet. I was thinking of waiting until January or February to start trying for my rainbow baby. Is there anything I can do or take besides prenatals to increase my chances of a healthy pregnancy this time?