I wanted to send a quick update. I sent the email to my son on Friday July 25. I was honest and open and did not in any way bash his birth father. I have not heard back from him yet.

He sometimes takes weeks to write so 2 weeks isnt really out of the norm. But I did ask him to email me when he could just to let me know how he is with it all. I told him I care about him and his feelings and am here to listen -- even if it's negative. I want him to be honest with me.
Thanks again for all the advice. I am so glad that I found this site -- MAINLY because it helped me find my son and second, to have people like ya'll to talk to about this!! Friends and family don't truly understand.