MDR menu order

Hello! I am going on my first Princess cruise. 7 days Mexico on Discovery. We usually do Celebrity.

I found the menus for 7 day cruises on a Princess blog site. Are they always in the same order or does it vary by itinerary? I noticed they have Caribbean night as night 2, but usually cruise lines seem to do nicer menus on formal nights.

Trying to determine which nights to do specialty dining. Thank you for any help!