rant about boyfriend

I'm already hormonal and stressed from being pregnant, moving, and starting a new job and for some reason my boyfriend is picking every little fight and being so immature (he's 26). I pay for everything because he doesn't have a job right now and I don't ask much of him. This situation is starting to really suck. Any time I try talking to him about how he acts he doesn't even consider what I'm saying. It's his way or nothing.