Hi Samantha!
Congratulations on your upcoming bundle of joy! Even though he won't remember much of this trip, he will certainly be welcomed almost everywhere. Traveling with 2 under three may seem daunting, but Walt Disney World Resort was built with families in mind so you'll be covered. You'll definitely want to stop by the
Baby Care Centers. These are great places to feed or change a diaper as they are cleaned constantly and provide a relaxing indoor environment away from the excitement of a Disney Day. Here you'll also find any necessity or emergency supply for purchase, from medicine to back-up clothes to baby snacks. They even have bottle warmers, microwaves and ovens so you can prep a meal for both of your children.
Guests are allowed to bring outside food and beverages with them, including baby food in glass jars. You're not restricted in how many bags you bring, as long as the bags are under 24" X 15" X 18", so bring as much as you need for the day. And babywearing is not only allowed, it's completely encouraged, even on attractions!
Your son will be allowed to experience
any attraction without a height limit. For the bigger rides where his sister does measure up, OR the really thrilling rides that you and dad don't want to miss out on, your family can take advantage of the
Rider Switch Service. Parent A will ask the Cast Member at the entrance of an attraction for a Rider Switch Pass while Parent B waits with one or both kids. Parent A will enjoy the attraction, then the two parents switch places so Parent B gets a turn. Best of all if your daughter is tall enough for that attraction she can ride with both parents.
We'll See You Real Soon, Samantha!
~Kristen