Would you have an abortion?

I have a 17 month old son and I am currently pregnant with my ex-boyfriends baby. My ex-boyfriend was my boyfriend up until a few weeks ago. Come to find out that he had issues with the fact that my son's father & I have an amicable relationship, for my son's sake. My boyfriend thinks that I am "too easy" on my son's father and that I still have feelings for him (which I definitely do NOT). Long story short, four months pregnant, my ex-boyfriend decides to kick me and my son out of the house (gave me 30 days notice). I guess at some point he changed his mind, but I still proceeded to make arrangements to move and he got mad at that as well, so 30 days became two weeks. Now I am in an unfurnished home and I am still pregnant with his child. I really wnat this baby, but I know I will not be able to support two children on my income alone. What would you do if you were in my shoes?