My son is growing up :(

A few days ago my son graduated from the eighth grade... it's really a bitter sweet moment. I'm proud of the man he is becoming but I'm sad to see it all happening so fast. As I watched him walk across the stage it hit me that I really only have a few years left with him being my little boy. I'm holding on to the hugs I still get, the nights he ends up laying his head in my lap as if he were still three years old, and the moments he just says "mom I love you" for no reason at all... I'm holding those moments close to my heart because I know my 5'9 170 pound teenager isn't going to want to be mommy's little boy much longer...