Hi Olivia, welcome to planDisney!
Thanks so much for bringing your question to us, I'm happy to help!
I have two little ones myself, and I'm happy to report that you can certainly keep your baby with you in your baby carrier at all attractions without height restrictions! However, for attractions that have lap bars, such as
The Little Mermaid ~ Ariel's Undersea Adventure, the Cast Member may ask you to put your little one in a forward-facing position. The
Disneyland Resort has a neat website where you can filter attractions by height restriction. This should give you a clear picture of which attractions you and your little one can adventure on!
And before I let you go, you must visit the AMAZING
Baby Care Centers! My wife and I love the baby care centers and visit them often for our little ones. They offer a clean and comfortable facility with changing rooms, nursing rooms, a feeding area with high chairs, and more. At Disneyland Park, it's located at the end of
Main Street, U.S.A., next to
First Aid. At Disney California Adventure Park, the baby care center is located next to
Ghirardelli Soda Fountain and Chocolate Shop, across from
The Bakery Tour in Pacific Wharf.
I truly hope you have the most magical time! If you have any more questions before your trip, please visit us again!
See ya real soon!
Jin