Afraid

My husband and I have been doing nothing but fighting and arguing. I am almost eight weeks pregnant, and he doesn't seem to understand how difficult it is being violently ill all day, every day. We have two children already, and I love them more than is comprehensible, but I find myself unable to get or of bed for any length of time, due to being so ill. I've been neglecting the house work, cooking, even interacting with my own children because of how sick I am. He has begun drinking excessively and he is so hurtful when he does so. He told me I am worthless as a wife and mother, that I cannot do anything right and or marraige is a joke to him, he doesn't love me and never truly has. I am so depressed that I've begun having terrible intrusive thoughts, I'd leave, but he has drained the bank account, and I also have nowhere that I could go. I do not have a support system, I have no family or friends. I don't even know if I should continue with the pregnancy, because I cannot do it alone. I want to check myself in, but my husband would use that against me to take my children from me. I don't know where to turn, what to do, i have no one and I am afraid of losing everything I hold dear.