Good luck to you and prayers for your husband. Pancreatic cancer is tough to beat. (But it sounds like you have the guts for it!)
I agree with others who advise you to get a lawyer to make a visit to the hospital. Several years ago, my mother had ovarian cancer, and was not doing well, but probably could have lasted another month or two. But as a result of a medical "mistake" -- an order by a doc for a medicine that depressed her breathing function, and any doc worth his salt would have known not to give her that -- she died prematurely. It's my opinion that the doc in question took it upon himself to end her life "humanely," without bothering to consult her or her family as to whether that was what she wanted.
Threaten 'em. Have your lawyer inform them that if any "medical mistakes" are made, they will be investigated fully.
Doesn't help to threaten doctors, but it does help to have family there as much as possible.