H.R.
If you're not opposed to church functions, I would highly recommend Spanish River Church on Yamato; they have a Nurturing Your Newborn program that begins with babies days old and is essentially a "cradle to grave" experience. We started going when my son was 12 days and now he is 17 months and we are having a blast! We have forged a lot of terrific friendships too!
The groups are arranged by age so that is always helpful!
Good luck!