i was 13 weeks along when i had my d&c and i was told i could start trying again as soon as the bleeding stopped. i had no bleeding but i still waited about 10 days or so before having sex again. my d&c was at the end of october and i got pregnant about 3 months later (it had taken 8 months the first time).
they say you're most fertile after a m/c, abortion, or giving birth, so i wanted to start trying again asap.
all doctors say different things. if i were you and i had pcos and it had taken 2 years before, i'd be trying right now because of the increased fertility.
good luck! i hope whenever you go for it that it happens quick!
oh, and 30 is not old!!