Congratulations. Don't forget that you can enjoy the shows and attractions (non-ride) such as Carousel of Progress, Hall of Presidents, All the 360 theaters in Epcot, Street Shows, Fantasmic (DHS) and a lot at Animal kingdom too (Bugs life, Lion King, etc..)
Hope you have an awesome time. I guess the next big decision is to determine if this is the babies "First" trip or will you wait to classify the first trip after actual birth. Either way, enjoy and congrats!