Hi Debbie!
Typically, the Walt Disney World Parks are busiest overall on Saturdays and Sundays due to local visitors popping in. If you're planning for any relaxing, days by your resort pool or plan to get out to a place like
Downtown Disney for some great shopping and entertainment, Saturday and Sunday are great days to do that.
Based on your travel dates, I'd recommend that you visit Magic Kingdom on October 2nd if that's a full day for you. If that's your 'arrival day' on vacation, then wait until October 3rd so you have a full day there.
For lowest crowd levels, I'd also recommend that you plan for Disney's Hollywood Studios on Wednesday the 3rd and Epcot on Thursday the 4th.
*If you're not visiting Magic Kingdom until Wednesday, then Epcot Thursday and Hollywood Studios Friday are your best bets.
If you should decide to add in Disney's Animal Kingdom, one of my favourite parks of all, Thursday or Saturday are good days to visit, depending which schedule you follow for the other three parks.
This schedule will allow you the best opportunities to visit the Walt Disney World parks, and still keeping open time for relaxation and pool time or visits to other Orlando area attractions that you are hoping to visit.
Thanks for visiting the Moms Panel Debbie! I hope to hear from you again soon.
Wishing you a simply Magical time at Walt Disney World!
Kirsten