it sounds like your husband may have a bit of depression himself. With many bills looming, and his wife ill, and the threats of so many things weighing on him, he may have found an easy escape on the internet. From Face Book to porno, we CAN and DO become addicted to such technology.
Please find time to sit and talk with him. Share your heart. Tell him what is bugging you. Please be calm, and specific. Tell him you found his porno stash, and are worried that as young honey mooners, you think he should be looking to you for his sexual pleasures, and release, and not to some pictures on the internet that may or may not be doctored and photoshoped. Many of those pictures present a pretty unrealistic view of what real women look like, as well as what real women are willing to do. Remember most of these women are PAID to do things, and PAID to dress the way they do. Many have drug issues, and many more are in quite a bit of trouble with their lives, emotionally, spiritually, mentally, financially. How attractive are these women when you add a dose of reality to thier lives? Its great to just stare at them as an object, but when you provide a back story, it makes them much more human.
I hope you are able to share you hopes, fears, and concerns with this man. btw, the "average" that most amercians that are married have relations is ONCE a week. As honeymooners, young ones, or newly coupled the average is higher. My husband always says that men need sex to feel loved, and women usually say they need to feel loved to have sex. It takes some conversations, and some honesty with each other to reach compromise on everything from who does the dishes to who should handle the finances and so on.
If you are handling the finances, does HE know how bad the financial picture is? Have you sat him down and shown him the budget of how much money comes in vs how much money goes out? or does he simply hear "we have money troubles!" Men tend to be "fixers" if you lay out a problem and ask him for his help, most men get right on board.
If you find that you are unable to speak to him, or reach him, please please please seek some counsel. If you have insurance find an MD, if you dont, please speak to your pastor, clergy or call your town hall to find out which social workers in your area use a sliding scale for clients of limited income.
Hugs and prayers headed your way. I am sure you will find a way to reach him.