Welcome to the Disney Parks Moms Panel, Erin!
Magic Kingdom's fireworks spectacular, Happily Ever After, will be available nightly at 8:00pm each day in the month of February. Catching this delightful fireworks display to commemorate your Prince Charming's birthday, sounds like the perfect start to a magical vacation.
My favorite place to view Magic Kingdom fireworks is from the beaches of Disney's Polynesian Village Resort. I suggest making an advanced dining reservation for 'Ohana, or Kona Cafe, between 6:00pm-6:30pm and then heading to the beach to secure a great spot to watch the sky come alive - in front of the Lava Pool is a great location.
Another favorite location is
Top of the World Lounge in Bay Lake Tower at Disney's Contemporary Resort. This lounge, 16-stories above Magic Kingdom, is reserved exclusively for Disney Vacation Club Members are their guests. I see you mention you are staying at Disney's Beach Club Villas, a Disney Vacation Club Resort - if you are a "DVC Member" Erin, I highly recommend heading to Top of the World Lounge. This will be the perfect spot, especially since it is a special occasion.
I hope these ideas are helpful in your planning! Please let me know if you should have any additional questions. I am here to help you plan a pixie-dusted vacation, Erin.
Faith