My dad went through the same thing when he found out he had renal cancer. In fact, it was a scene very similar to what you've described.

I don't know you enough to tell you what to do, but I can tell you what I did. I listened. I let him say all the things he needed to say. I didn't say anything. He talked and we cried. He genuinely seemed to feel better just being able to talk. He died 6 months later.

Be there for your mom and the rest of your family. Whether he makes it or not, you will all need each other. You're luck to have a hubby to go home to and that equals a shoulder to cry on. Contrary to what you might think right now, you'll be ok..no matter what.

Good luck, and we've got fingers and paws crossed for you and your dad.