I'll be thinking of you both also. Remember this is a good thing you are doing for him and he will be much better off in the long run.
It will be hard for both of you at first, but as time goes on you will sort of get used to him not being there. When my daughter moved to Sweden at 20 years of age, I was absolutely devastated, the bottom completely fell out of my world, I felt like I had lost my right arm. I was so worried about
her as she had nobody over there to help her if she needed help. But you know time passed and things worked out well for her, I admit that I have never really gotten over losing my only daughter to another country but somehow you get on with life, I did, I had to. You won't stop missing him, but what I am trying to say is that you get used to him not being there, over time, it will take you a while.
You can email me too if you want to. I am thinking of you.