How are you? How is your wife and son? First of all I am very sorry to be late with my comment, but better late than never right!!!
Now to your poem. I really feel every word you have written. It is a very emotional poem. I like the way you have brought your feelings to the paper. It is more like a "confession" of love to your son.
You are using very simple words to express yourself but they do leave thier impact on the reader.
On the whole it is a lovely tale about a fathers feelings for his son. I hope when your son is old enough he will read it.
This poems shows that you are very proud of your son.
I really did enjoy reading it as a lot of your poems.