Re: silly question?
5 hours is a fairly long time to go without nursing or pumping. Even though this is just a one-time extended separation, there's a chance that you could experience a drop in supply, and a very good chance that you could reach the end of your meeting very, very uncomfortable from being overfull! At a minimum, I would pump in the car immediately before and right after the meeting, and if you can pump during the meeting, that would be great but is probably not required, as the meeting itself is only 3 hours long.
Coolest thing my big girl said recently: "How can you tell the world is moving when you are standing on it?"
Coolest thing my little girl sang recently: "I love dat one-two pupples!"