It looks to me like you have been treated badly for so long that it takes extremes for you to notice that something isn’t right. You’ve been worn down and emotionally numbed to your situation. No one deserves to be treated the way your husband is treating you. Kids don’t deserve to see their mother treated that way.
Your husband is a tyrant. He’s got you walking on eggshells all the time and somehow he’s managed to manipulate you into being the only responsible adult in the family. He’s acting like an out of control 13-year-old boy who uses tantrums to get his way and who expects to be totally financially supported. You’ve got five children. You certainly don’t need a sixth one who is a spoiled and bad-tempered brat.
It’s long past time for you to get some help. Fortunately there is a women’s program near you. Please check out the Women’s Resource Center. The hotline there is 404-688-9436. You and your kids need some counseling. Your husband does too but I’m not optimistic he’ll get it unless you make it clear he has to if he wants a family. You already support the whole family. The only thing you would lose if he left would be the abuse. Do consider it.
I wish you well.