Hi Annette!
Planning a Walt Disney World vacation? Well, you've come to the right place. Here, on The Disney Parks Moms Panel, you'll find answers to all your Disney vacation queries.
Typically, you will find moderate crowd levels during the week before Easter. Many colleges and schools are celebrating "Spring Break" throughout the latter park of March and beginning of April, so you will see lines for attractions and increased wait times the week prior to and the week post Easter holiday, with Easter week being the most crowded. Guests have encountered such wait times as an hour plus when waiting for their favorite attractions during peak weeks.
You can circumvent these lines and wait times by having a touring plan of sorts when you are headed to the parks. Get there early, know what attractions are must do's for you and your family, and plan for mid day breaks. You can leave the park, go back to your resort, relax in the pool and head back to the parks in the evening, when the sun has set and the weather is much more favorable.
Hope this helps you plan your magical vacation!
-Malanie