My guy is growing up

My guy is growing up.
He'll be 13 in less than a month and not a day goes by that he doesn't remind me of it.
He is preparing to go on a 4 day canoe trip this weekend with Scouts.
He is playing baseball with high school kids.
He is taller than me and let me know this week that the pants I bought 6 weeks ago are now too small.
He bought a laptop with his own money he earned from a babysitting job.
He built a hovercraft for a science fair project and
He was chosen to take part in a Math contest put on by the University of Waterloo.
I am so proud of him but just wish he wouldn't grow up quite so fast.