Hi Melissa!
It's never too early to introduce your little ones to the magic! Don't be nervous. Disney makes it incredibly easy to care for your infant during your visit.
Baby Care Centers are available in every park and I can't recommend them enough. They are perfect for feeding, changing, calming, pretty much anything to do with taking care of your tiny princess. Be sure to check out this video from my Disney Pal, Jen, for an in-depth look at all the centers have to offer. If your 7-year-old enjoys thrill rides, be sure to use Disney's
Rider Switch service. This service will allow you to sit with the baby and then alternate with another adult to wait while you ride again with the older child. My family loves this option!
Have a great time planning, Melissa, and please let me know if there is anything else I can assist you with.
Magical Wishes,
Lauren