big big hugs. I'm sorry you and DH are going through this. Give him some time.....and you too!
You are still a team! Women and men can behave differently when it comes to going through something like this....if it was you, you might want to get into all the detail with DH, hash things out, explore different possibilities right from the get go - whereas he sounds like he needs to go through things in his own head at the moment. He must feel like he's letting you (ie the team) down
Sorry to make assumptions - just trying to be helpful.....I hope I am anyway
It's good that he did give you a summary of sorts though! And he's willing to move forward with other testing - that's pretty awesome.