Hi Isabell,
Thank you for visiting the Disney Parks Moms Panel with your great question. I see you are potty-training your preschooler so I have a question for you; will you also train mine?
All jokes aside, as a mom who has traveled to Walt Disney World Resort with two children in various stages of diapers and potty-training, I understand your concerns. I am also happy to tell you that I can't think of an easier place to deal with this exciting milestone than the Walt Disney World Resort.
Like you mentioned, each of the four theme parks has a
Baby Care Center with lots of room for diaper changes. They also have a unisex bathroom if you prefer a bit more privacy. And if you are short on supplies, you can purchase needs like diapers, wipes and other various items while you are there.
The water parks do not have designated Baby Care Centers, but most restrooms in both the water parks and theme parks will have a baby changing station. Even in the men's restrooms!
I recommend bringing whatever you think you may need for your day in the park, whether it be extra diapers, a change of clothing or swim diapers for the water parks. If you don't want to carry them with you while you are enjoying the park, consider
renting a locker for the day.
Since you still have a few days before your trip, I'm sending pixie-dust your way for some speedy potty-training!
Wishing you a magical vacation,
Andrea U.