Hey, hey, Katie! Welcome to the Disney Parks Moms Panel. I am so glad you are starting the new year thinking about a magical Walt Disney World Resort vacation. It truly is the place "where dreams come true."
Walt Disney World Resort
Theme Park Tickets have altered a lot over the past year. What was once a 14-day use window has now changed depending on what ticket you purchase and which days you will use your tickets. Arriving June 30, 2019, shows some of the lowest 7-day ticket prices of the summer. Great job! In your specific case, a 7-day Base Ticket gives you entry into 1-park-per-day and can be used over 10 days beginning the first day of use. That being said the tickets must be used between the dates of June 30, 2019, to July 9, 2019. If you have the Park Hopper Plus option then you may use them over 11 days. I would suggest inserting "non-theme park" days into your vacation so you can 1) sleep in after the late night fireworks, 2) head to Disney Springs for some shopping and 3) enjoy some time at the pool. Remember be like like Happy dwarf and not like Sleepy and Grumpy.
Disney Dad Tip: The summers are very humid at Walt Disney World Resort. I suggest bringing some small cooling towels into the theme parks that you can dampen to help stay comfortable.
Katie, enjoy making many Magical Memories!
~Jason ºOº