Non pregnancy related: My SO and I live in my MIL's house with her and her drunk husband because I…

Non pregnancy related: My SO and I live in my MIL's house with her and her drunk husband because I lost my job and havent been able to find a new one, due to pregnancy, so we couldn't afford it on our own right now.. Well this morning my girls and I get out of bed and want some breakfast, so I'm going to take them to get some yummy pancakes and I walk out the door and see my unborn child's new baby gear, that hand been stored in the finished basement prior to today, sitting at the curb.. I flipped out and had to carry it all back in by myslef because SO was at work.. He gets home and i tell him what happened, so we're both pissed and said something to his mom about it, she goes to talk to her drunk asshole and we hear him screaming "if it's in my house, I can't throw it out if I damn well please" she starts yelling back about it being our stuff and him needing to ask if we want it next time and he again yells "fuck them, I don't give a shit what they want or don't want".. We've never done anything to him besides need a place to live for a little bit.. We planned on finding a new place before our baby gets here because there just isn't enough room here, but this has made me want to get out asap...! Please tell me, ladies, what would you do in this situation..?