Looks like I'm the bread-winner!

My boyfriend and I have been together for a year and have lived together for about 6 months. We've always had a strong healthy relationship until... In August 09 we found out we were expecting but in October I had a miscarriage. He stayed home from work for two days to care for me and upon returning to work, he was notified that he was terminated. For the last four months, he has not attempted to look for a job, he was getting unemployment until two weeks ago. His mom and I are supporting him (making his car payment, paying his insurance and even supplying a little bit of spending money). In the wake of all of this, my car was repossessed simply because I was spread too thin and had to make some scarifices. He has developed a hateful attitude, he's full of excuses and always ready to blame anyone but himself. I never throw it in his face how much I've lost in my efforts to help him, but I'm getting to a point where I'm becoming angry at him. I work a full-time job as well as a part-time just so I can keep us with electricity and water and food. Lately, he's been threatening to move out if my attitude doesn't change. When I leave for work he's still sleeping, when I get home (12 hours later) he's sitting in the recliner playing XBOX on the Internet or watching tv... He rarely helps around the house, on occasion he'll clean the kitchen. I'm not afraid of being single, but I want to hold on to this relationship because of who I know he is. But just today, I was cleaning the spare room and filing my taxes and he is nagging me to fix lunch, so I suggest that if he'll help clean up the kitchen, I'll gladly fix lunch. He blows up telling me he's sick of my attitude and asking ke why he has to help me, what is he going to get out of it... I don't like to throw things in his face, but I bit my tongue and retreated to my bedroom. I'm at my boiling point I'm afraid. I love him to death but I get no appreciation, no thanks and I don't know what to do...