it takes my breath away

It's 8:15am, we're almost to the spot of drop off.  I hear the first bell ring.  A quick hug, and "I love you" and "have a great day, Bub, I'll see you after school" and she's out the door.  I sit in the car and watch her; just for second because there is a line of cars behind me.  I see her pink backpack bouncing.  She's got a little skip in her walk.  I start to drive away slowly because I know it's coming; that one last wave and smile.  "Jonah and Ava, wave to Stella"  She glances over one last time and gives us a big wave and smile.  And then it happens, I feel like I can't breathe and my eyes well up in tears.  It doesn't happen every morning, but when it does I just want to run in after her and give her one last hug and tell her "Stella, stop growing up! You are just right the way you are." 

She's growing up so fast.  It takes my breath away.