I was thinking the same...he is not contributing to the household as you are working 2 jobs, and pregnant on top of this. You are doing physical labor to boot if you work in a nursing home. He sounds extremely selfish and immature in his daily behavior....he has no right to have a pity-party on your dime.
could you consider a living situation with a helpful calm roommate instead of this insane drunk? because until he wants to stop, he's going to keep doing the same thing.
Please take care of yourself...whose name is the lease in?