Welcome to the Disney Parks Moms Panel, Amy!
I sure hope this answer gets to you in time! A date of arrival was not listed on your question submission - fingers crossed you get this information before your arrival at the most magical place on earth.
Your Disney Dining Plan entitlements will be available to you on the day you check-in to your Walt Disney World® Resort hotel, and any used credits will expire at midnight of your check-out day; essentially giving you access to your Dining Plan credits from early Sunday morning until 11:59pm on Thursday.
Another Disney Dining Plan tip: You can choose to allocate your credits/entitlements to meet your needs. Want to wait until Monday to begin using your credits? You can do that! Need to use extra snack credits one day? You can do that! You have the flexibility of using your Dining Plan how you wish until your credits are all gone.
Need to know how you can keep track of your credits? Just download the latest version of the
My Disney Experience Mobile App for your smartphone. The app, and your receipts, will display how many credits you have used and how many you have remaining. Now THAT is pretty tasty news.
I hope this information is helpful, Amy! Please do not hesitate to reach out to me with any additional questions. I love to talk Disney Dining, so I am here to help.
Faith