1 prayer said.
i know exactly how you're feeling, as my wife is battling cancer. actually, it's her second time around. even if it does turn out to be cancer in your husband's case, it's not necessarily as bad as it may initially seem.
in my wife's case, she first had cancer about 10 years or so ago. it had already spread to the lymph system. they cut out what they could, and then she was on chemo and drugs. after a couple of years or so, she was down to a check-up and a shot twice a year.
then she was declared cancer-free and only went in twice a year for a blood check-up. it turns out that blood test give fairly reliable results. after 4 or 5 years, it turns out that it had come back and spread extensively with the blood test not having detected anything.
well, the doctors hemmed and hawed over how much time she might have, but they seemed to be suggesting perhaps a matter of a few months or 1/2 year or so. (that really s^cks. though doctors are technically very competent here, they aren't required to tell you anything if they feel it's in your [or their] best interest).
my wife was in a really bad way for quite a while, with radiation and chemo. however, drugs are so much more advanced today than they were 20 or even 10 years ago. while my wife's cancer had spread so far that at the moment there's no real chance of her being able to beat it in the long term, it's been about 3 years now since the second time around, she's recovered a lot of her health and is plugging along in good spirits. at the moment, it looks like she's got another few years to go, and new treatments are coming out every single day. these days, unless you're already at the point of dying, you don't even need a miracle; only that someone's research show results. we're expecting the best.
you should too.