rumyam:
A few things bothered me about your post, things that when I was in your shoes just a few months ago, would have been how I worded it as well.
"Two days after I found out, I made him send the NC letter and suposedly there has been no contact."
and
"Do I have the right to make him leave based on the possibility of seeing the OW."
The real lesson I learned is that I cannot force my wife (who had an A and is still in contact) to do anything. She must make decisions of her own accord. It is just like raising a child - you have to allow them to learn and grow. If you force them to do anything, they very well may resent your strong arm tactics. Then again, Both he and you (especially him) need to analyze adn decide what is most important to each of you: your love for each other/marriage or his job.
On the other hand, if your husband is serious about the MC, reading and learning about Surviving an Affair, and getting God back into your lives, you are in a pretty good position - better than most if you read any of the other postings in Plan A/Plan B. I would suggest you spend a few hours reading about what other people are going through as there are a lot of good insights. The book will also illustrate the importance of determining what you can do to make your marriage better, since no one person is ever faultless in terms of what made the affair possible in the first place.
Be strong, keep your head up, thank the Lord that you are working on recovery, but follow the MB principals to ensure that he is not pulling the wool over your eyes.