Relationship Issues

I know this might be off topic from a pregnancy page but I am 10 weeks pregnant today with my SO. We've been together for over a year now and it certainly wasn't a plan to get pregnant. He's all around a good guy but has a temper from hell, often acts like a child, and is considerately irresponsible. He has no car, debt up to his neck with my mom, his dad, and other debt, we currently live in a full house with his mother and three younger siblings and our dog, he doesn't pick up after himself, he's extremely messy and careless, he is a video game addict and must be on his gaming console when he gets home, he has one decent job that doesn't quite pay enough. I have a car, but currently no job due to that fact that I just moved over an hour away to be with him during the pregnancy and unfortunately for me, it's not an easy journey. I am constantly nauseous, vomiting, and weak, and wouldn't last at a steady job, let alone anywhere in public for more than a few hours. It's not that I expect him to get a second job or anything, but he said he would take care of me and the baby and I'm just honestly really concerned that he won't be able to pull himself together in order to provide for our family. His mom is very understanding in my frustration and knows he is a difficult case, but begs me to have patience with him. I don't plan on leaving him or anything but I guess I'm just looking for closure that I can feel reassured that someone else out there understands. I hate to sound like I'm complaining or being nit-picky. I'm just worried I'll have to take care of this baby on my own if something doesn't change.