Ever second guess if your partner is right for you?

I constantly question myself, whether my partner is right for me or not. We bicker so much, specially since living together and having a baby. It's very tiring and although I sometimes excuse him, because I know he's stressed out, since we are a one income household for now, but he has recently hurt my feeling by how he "voiced" needing help. He basically always says he doesn't have money for things I want or things we need for the house but he has money to spend on his cars and get them fixed because that seems to be his priority. I've asked him straight out, so you don't have money for me and baby but you do for your things, and that's where the fights start. I know it's his money and he earns it and he's free to do whatever he wants with it, but I guess it's disappointing to feel like we aren't a team and his needs will always come first. He doesn't help around the house, only makes more mess, won't even pick up his plate from the table, and his excuse is because he goes to work and does his job. My "job" is to take care of the house. Didn't know it meant being a maid. Also, lately whenever I ask him for help, which I shouldn't be doing because he lives here and is also a parent...he tells me to not tell him what to do, so he won't do it, or if I remind him of things we need to do it buy for the house he'll tell me to shut up because I already told him 10thousand times. So if I stay quiet and not say anything he just acts butthurt. It bums me out because I question whether this will last and how I don't want my child to be raised in 2 house holds. I know the importance of both parents into he same house. Any advice? Has anyone gone thru this?