My mom is being selfish..need Help!!!

My mom is always late on rent and her car note which causes late fees because she wants to spend her money on negative shit....She's pretty much kicking me out because I won't give her money whenever she ask because I'm trying to save for my son because I doubt she really gone help with his crib and stuff....idk what to do and I don't want to turn to the streets but looks like I have to. I applied to many many jobs and nobody hasn't called me back n etc. I'm 19 and 6 months pregnant, she's also not taking me to work and I don't have money to get there so possibility I could get fired but she doesn't care. What do I do?