My baby turns 4 next week

I would like to say that I am having a very hard time with Connor turning 4 next Tuesday. It amazes how big he is. I was watching him today as he sat on the floor singing to his sister. It was the sweetest moment. All I could think is that he was once that little and now we are planning a dinosuar party. I know that all kids grow up but he is growing up so fast. He loves to do what ever his dad does. He loves to go to work in the office like daddy and work on a computer. He is jsut so big!