Stressed out rant

Okay so I'm currently 34 +5 weeks pregnant. The doctors expect me to have my son early around 37 weeks.vi just moved into a 4 bedroom house with my fiance and his family. His mom has always been kind of fucked up and everything but she seemed to be growing up. So two days ago my fiance and his older brother got into a fist fight because his mom tried to say I'm a lazy bitch who doesn't clean or do anything around the house while everyone is gone even though beyond the fact I DO, his brother has no job, no school, and just sits around and smokes. My man pointed that out and his brother came out mad that he got called out on his BS and started swinging. I ended up getting hit by his brother too in the eye and she didn't even make him leave. Keep in mind he also tried to fight her boyfriend (ex as of today) because he sits in the bathroom for hours!!! And won't let anyone else use it and so her man called him out on he don't pay bills so he has no right and they almost got into a fight. Jump to today, she's been drinking rum all day drunk af with her son and decided to break up with her boyfriend and start destroying the house and even try to hit her twelve-year-old daughter the same way I got hit with the elbow and then try to smash her in the head with a bong. She was trying to fight everybody and now her and her drunk son took her 12 and 13 year old daughters to move back to California with her ex, keep in mind we live in Oklahoma. She has no license, she has no insurance, she has warrants out on her already, and even if she has her son drive he has no license and he's also drunk. she took her now ex-boyfriend steering wheel so that he wouldn't be able to leave answer to driving to the California but he just got in his car no steering wheel used a makeshift steering wheel and went and got it back. I fear for the safety of the girls and I don't have her ex's number to tell him how she tried to hurt her physically and with the bong. I don't know what I'm going to do anymore because we have nowhere to live we're about to have a baby and most of our money went to her anyways because we'd always help her out and her ex is going to leave too because we can't all afford this house. If I wasn't pregnant I would get into a fight and right now I'd be fucking her up. It makes me so mad that the police never come when they're called because she and her son both need to be arrested and the girls both need to be able to be with their dad's back in California in a safe environment.