I joined Bucktown Babies on Meetup.com. They have a few playdates a week, which looks great for when that time comes.
Since we don't technically have babies for playdates yet, I emailed the leader to see if she'd mind if we used the group to schedule expectant moms stuff, then we will just merge into the play date stuff as we deliver...
If you'd like to be part of the Bucktown Babies expectant moms group, join on meetup.com and we should be in action soon!