There is a great 6 week group called The Chicago New Moms Group for New Moms with babies 0-6 months old. The next session is starting on Jan. 29th but the early bird ticket price ends Jan. 4th!!
It is a really amazing group where you not only learn a ton but also meet other moms going through the exact same stuff as you!
You can learn more about the group here: https://chicago.kicksprout.com/chicago-events/2013/01/the-chicago-new-moms-group