Welcome to marriage sweety :) EVERY marriage goes through times like this. Anyone who tells you they NEVER argue with their spouse is either lying, doesn't live in the same house with them, or never speaks to them.
It's pretty clear you two are under a TREMENDOUS amount of stress, which is probably the biggest issue here right now. If he's staying home right now to care for you, look into getting some part time help with that. Look into what medicare/medicaid might cover. That way he might be able to at least get a part-time job. For many men being unemployed is equal to being useless, in their minds.
If he's unemployed because of the current recession, the best advice I have for that is just keep looking. Maybe reassess what he's doing and if he'd like to consider a carreer change. Possibly look into going back to school if he'd like.
And by all means ... some fun time for just you and him. Where you spend time together and take some really deep breathes. You don't discuss the issues, you just spend time enjoying each others company. Go to a movie, out to dinner, or some other favorite activity. Just to remember the things you love most about each other.
Good luck and know that you can get through it with time and commitment and communication. It all takes practice, and start with the small things. But you'll get there.