No support :(

I have been with my BF for 2 yr.s in April. i have been there for him from day 1. The first night we talked, he cried on my sholder. He has been in situations that has left him no where to lay his head at night. I got my family to let him stay with us. I have lost conections with those family members for standing up for him when things went wrong. We ended up geting our own place and losing it, from room mates (his friends), not following through on their half of the rent. He moved in w/a friend and i went to my moms. Well aft losing our place, he then lost his job. I paid his rent for him to stay at his friends house. They ended up puting him out eventually for miscommunications. So when our income tax came in, he baught a car, that he has been living out of for about a 2 months now. The income tax was suposed to get us started on an apartment for my son, him, and I. All of the money went on the car and the filling of the taxs (all 3,600). If thats not enough to go wrong, i have a week and a half to find a place to live with my son. He says im in a more stable situation then he is. I try to understand his stress and the things he goes through but i dont think he does the same. I have a 4 yr old son, im pregnant with his son, i have a part time job (only geting about 14 hours a week lately) and i have no where to live. He has a full time job and lives in his car. I cant live out of a car with my son, or while im pregnant. Neither of us are in a good situation, I just hate how he doesnt think my situation is a big deal and pushes it off as nothing. Its a big deal in my eyes.