Hi there!
I wanted to say I thought about your post a lot last night. I'm still TTC, but sometimes I sneak over here to get an idea of "coming attractions". I don't know if my thoughts are welcome, but I thought I'd throw them in there anyways. Maybe they'll help...
It sounds like you and your OH have a lot going on besides expecting a baby. There's not a lot of detail in your first post, but I imagined last night while thinking about your situation that your husband might feel: financially overwhelmed, lonely, disconnected from you, lost. I don't know how you structure your finances (in my relationship, I generally run the finances AND I'm the breadwinner), but if you rely on him to manage the money in general, it might help to sit down and have him talk through his concerns. To share the burden, so to speak. Then you can help him come up with solutions. I'm not sure if you work or not (two working parents with four kids... would be SO HARD I imagine!). If you don't, maybe he wants to discuss you doing that but doesn't know how.
One of the things I most admire in friends of mine who have children is their commitment to remaining a close couple, and fostering their individual passions. They go on dates, they take turns having "mom" and "dad" night, so the other parent can take a class, or go out for dinner with friends, or play a sport. My DH and I have had many discussions about this, and we both feel that the NEEDS of the children are a priority, but the PREFERENCES of the children are not. At the end of the day, we believe our relationship is more important, because it provides the environment in which we want to raise our children. So, the needs of our relationship, as defined by the two of us, would (in theory!) outweigh the preferences of the children. Those needs would vary from couple to couple, but for us, we plan on having a child-free bed. As much as possible. It could be that your OH NEEDS a child-free bed as well.
Just something to think about! Kids are rough, and it sounds like you really want your relationship to grow and adapt along with your family. It sounds like some serious conversations about some heavy stuff might be really helpful, and some solution brainstorming. The good news though, is it doesn't sound like he doesn't want another baby, really, it sounds like he wants more money, more time with you, and more help? But hey, don't we all!