Check it daily if you want. It will change. I print mine out just to make sure I can track iall the changes. I now have 6, 7, 8? different DDE ranges all 90 days, starting as early as Mar 3 and ending as late as August 3. Today it was 4/22-7/20
Res number 1205 expected delivery date about May 15 - per dealer, and I have a VIN now so I think he is pretty close.
Don't let the constant change frustrate you, and understand, it will change almost daily, except for weekends.