Growing up...Moving up

It's still hard for me to believe how much my little boy is growing up, but he is. He has officially been moved up to the big kid class (as he puts it). It is actually the next class up with the 3/4 yr olds. Even though he won't actually be three until October, his school decided to move him up anyway. He was the only child in his old class that was fully potty trained, and they had an opening. We also thought it would be better for him to get used to the change of a new class before the baby's arrival. It has been a hard week on me and him. I have left him crying most mornings, which is extremely hard on me, but I also know that he quits soon after I leave. He really is a big kid now!