M.W.
Honesty is the best policy. I did daycare for 5 years and almost all of my families were great and really open with communicating. The same situation happened with one of the families as well. Although we had discussed it and new in advance that when they had their 3rd baby that she would then stay home. I did not make them leave sooner just because I knew they would be going anyways. And to this day, I still love those 2 kids that I cared for as much as I ever did! And it's been 5 years since I babysat them! We still get together from time to time and see each other. And the kids still remember me (even though the youngest was only 2 1/2 when they left).