http://www.lamaze.org/
Here's the link for Lamaze. Whether or not you have "natural" childbirth is completely up to you, but they also have many other informative things to offer.
Also LaLeche league
http://www.lalecheleague.org/ for breastfeeding. Now that I completely believe in if you are at all able to do it!
We're gonna be aunties, we're gonna be aunties, nah nah nah nah nah nah!
