Hi Sara,
Thanks so much for visiting us at the Disney Parks Moms Panel! The good news, Sara, is that you have a lot of flexibility with your
theme park ticket! After its first use, it will expire within 14 days, but as long as you're within that 14-day period
and still have at least one day's admission left on your ticket,
you may upgrade it and add an additional day of theme park fun! In your case, you'll simply pay the difference of the current cost of 5-day and 4-day Park Hopper tickets.
If you'll be visiting more than one park per day, make sure you take advantage of
Disney's complimentary resort transportation! Between monorails, ferryboats, and buses, it's really easy to move around and travel from park to park or even stop back at your
Disney Resort hotel for an afternoon rest or refreshing swim in between theme park visits.
I hope you and your loved ones have a truly magical vacation, Sara, and please let us know if you have any other questions as you're planning your trip!
Missy