Hi Lani! Oh, you're in the two week countdown -- you must be so excited that your Walt Disney World vacation is almost here!
I know you want to make the most of your short time at Disney, but to visit more than one of the Disney parks on the same day, you'd need to have
the Park Hopper option on your multi-day base ticket. (If you attempted to use a multi-day ticket at a second park on the same day, the system would reject it,
rather than taking an additional day off.) Your base tickets will allow you to
go in and out of the same park each day. If you want to visit multiple parks in one day, consider adding the Park Hopper option. (Click
here to read why I think Park Hoppers are worth the extra money.)
I can't tell from your question the type of tickets that your purchased, but I'm assuming you bought a multi-day ticket since that's more cost-effective than buying individual one-day tickets to each park. However, if you do have individual one-day park tickets, then you could of course use two of those tickets to visit two parks in one day.
Have a magical vacation! Come visit us again at the Moms Panel if you have more questions! We're happy to help!