Can i save my relationship?

my girlfriend and i have been together for 2 years. we have a kid that is 3 and 1/2 months old and things are about to end. before she got pregnant, she pushed and pushed to move in and to have kids(the pregnancy was accidental kinda, she refused to get on birth control). so when she got pregnant i stopped trying to push her away and was all into her, put 100 percent into it. we got into little arguements but it was ok we moved on. when we had the kid all sorts of things which she pushed for were now relationship ending decisions.. like she wants to get married and have more kids. so i said maybe we'll see blah blah blah. then all of a sudden she just goes wicked aggresive and abusive on me, ive done nothing but treat her like gold and she keeps treating me like crap. i blew up on her once because she was putting me down so bad in public in front of her mother but other than that i just beg her to make things work and that ill do anything to make it happen. now its to the point where she says "were on a break". that sounds like to me she is breaking up with me. when the lease is up in a few months she wants to go move in with her mom to help her mom with the bills(she is an island girl and says its all about her culture but the only reason she came to live with me in the first place was because her mother was taking most of her money). i see this as the end of our relationship. the more i try and beg for reconciliation the more she pushes me away. but if i give her space she will just let time go by and then move into her mothers. which i know will be the end of it. she basically says ive changed for the worse and wont compromise on anything. but its HER that has changed for the worst(ive become a doormat) and its HER that wont make a comprimise. im willing to give into everything she wants and lay my dreams down. am i stupid for even trying? i know people act different after having a kid but this is impossible to deal with. what can i do, or should i do?