Stressed and feeling hopeless

I'm 21 and pregnant and staying with my boyfriend. We live with his parents because he doesn't make to much money to support both of us plus a baby on the way. I don't work I'm a full time student. I can't afford anything and neither can he. I had a flat tire today and we can't afford a new one and the other was to dangerous to fix. My family won't help me out and unfortunately my boyfriends car had to get out in the shop this morning as well and is now driving a rental. I feel hopeless and even though having a baby is supposed to be a great wonderful thing, it's honestly turning out to be the most stressful and depressing thing. I need a financial miracle because how things are going well never get out of debt