Mother in law is a lying Bitch

My mother in law has been receiving money from us for an entire year! She was saying she was disabled and couldn't work. Well come to find out she's been lying the entire time using my husband and I for a free ride. We found our we were pregnant and decided to cut off the extra money we were sending her and start saving for our baby. We told her and she got very distant with me first! So a week ago I cut off our Netflix because we don't watch it but she does because she has the password... she called yesterday morning upset about it. We told her no one in our home watch it and if she get a job than she can pay it...it's so cheap right? Well she hung up then last night called my husband telling him he's in danger with me and I'm a criminal in 23 states!!! She said she looked me up on Google and it list 23 results and criminal. She also says my husband is choosing me over her and she feels like she is second.. well now I'm pissed! I have a son that's 6 from a previous relationship (my first child dad passed when I was pregnant). My husband is in the military and they do a thorough investigation on you when you get an identification card with them. I am SO upset! She lives on section 8 she just was thrown in jail for starting stuff with her young neighbor. All of this started over money! And Netflix!!!! Everything was fine when we were giving her money until now!!! She yelled me saying "she's not a side chick or a lollipop" wtf your a lazy section 8 using bitch that won't get a job! I had enough of being quiet and my husband is so hurt he said he don't know what to do with the two women he loves are at each other but she's the one called here with bullshit! She told him he's in danger with me smh. I have a common first and last name never been in jail or lived in 23 states but this bitch isn't going to keep slandering my name! She deleted my husband off her Facebook then requested him again WHO THE FUCK DOES THAT?!?? Am I wrong if I want to take her to court? Is there anything I can do? I'm sick and my doctor told me not to stress I am 5 weeks pregnant.