Brandie, I'm glad to see you're back with another question about your cruise!
When you make your reservation, you can choose the Main Seating or Second Seating for your dinner. Main Dining is at 5:45, and Second Dining is at 8:15. These are the times that the restaurants open for the guests. While you don't want to be too late, please don't feel you need to line up outside the doors before the dining rooms open. Your table is always reserved with the same service team that will follow you throughout the cruise to each of the restaurants. If you haven't cruised with Disney before, I think you'll really enjoy the
Rotational Dining.
In addition, each night there will be at least two show times for the Broadway-style shows in the Walt Disney Theatre. If you have the Main Dining Seating, you can attend the later show. Those with Second Seating for dinner can attend the first show, then head off to eat afterwards.
Have fun planning the rest of your cruise, Brandie! I hope you're able to find a good time to sail and bring along your newest little one once he or she is old enough. Let me know how else I can help!