Advice. 16 & Pregnant on my 2nd Child.

Brittany
Even though this is my second child. My first child has everything, but my mom & grandma told me that they would not help me if I became pregnant again. Me & the baby's father are both 16. And i have a job but i can only work a few hours a day because im considered "high risk" so money is tight. I dont know what to do. My mom told me that i can not stay in her home with 2 children. My boyfriends mom hates me but that is where im going to be staying. I have physical fights with my boyfriends sister every time i see her, but im tired of fighting her for no reason & now that I'm pregnant im putting my unborn child in danger. I just don't know where to go or what to do. I want to be somewhere where i feel safe with my 2 children. 
P.s i feel like I wrote this as more as a "letting steam off type thing" than a getting advice thing.
🚧🚧UPDATE🚧🚧 If you are coming on my post to judge me or say anything negative you might as well keep it, because clearly i dont care. Yes im 16, but my first child is well taken care of and have anything she needs or ask for. The only thing messed up is my living situation. Yall judging me by one post.