crazy SIL *long post*

Does any one else have an extremely annoying sister in law? This woman has went above and beyond to get on my everlasting nerve. Im 38+1 weeks so I'm tired, hurting, all around grouchy and I'm having a lot harder time biting my tongue. Since we announced my pregnancy she has been just awful. She's in nursing school so she thinks she knows everything there is to know about anything medical. She has told me on numerous occasions that she's going to monitor me for post partum depression because she had it and apparently that makes me susceptible to it. She invited herself into the delivery room and expects her mother to babysit her kids while I'm delivering when I want her there to see her first grandson born and honestly I don't want her at the hospital at all, my SO refuses to open his mouth to her about any of that. I've said multiple times I don't want children around my baby until a few days after we come home but she thinks hers are excluded when in reality hers are the reason I don't want kids around him because they are just awful kids and are so so mean and don't listen to a thing they are told. When we did our gender reveal she cried because he's a boy. She wanted me to have a girl because now she feels like her girls won't mean anything to her dad. She was straight hostile with me for over a week all because he's a boy. She's now trying to say that her oldest who is 5 might have cancer, but the hospital is refusing to do a MRI or scan until January of next year when I've NEVER known any hospital to wait that long if that was truly a concern. It's all a way to take the spotlight off of my son. We also have a pit bull whose a little over a year old, best dog I've ever owned but according to her I need to get rid of her because of the baby and she even posted her on Facebook trying to give her away for me(my so did flip out about that). We are keeping my dog, she's wonderful with children and I have no doubt she will be wonderful with her little brother. If I thought for a second otherwise I would not keep her. I caught her going through all of my baby stuff and had the nerve to say "you don't need all of this" "you should give most of this away" "I didn't have this much for either of my girls" and even tried to rearrange his things after I just got done saying how I spent months getting his nursery the way I want it(my so works ALOT so I've done almost everything by myself) ive nested like crazy so just her touching things gave me anxiety. She tries to push and prod on my belly like my doctor does and I swear she tries to do it in an attempt to hurt him, I shove her hands away and tell her not to ever touch me or my belly. It's been hot out and one day I was cleaning my truck in maternity shorts and a bikini top and she said "you are entirely to proud of your pregnant body" "you need to put clothes on" "you don't have to show off the fact that you don't have stretch marks" all the while in MY driveway where no one could see me anyway because we live in the middle of no where. Earlier in my pregnancy she stole all of my moisturizers and stretch mark creams that I used even before I got pregnant, I found them in her car. No I was not looking, she asked me to grab a bag and they were all underneath of it and she used the excuse that "she needed it more than me" and that "I'm to privileged" when I've worked for everything I own. How do I get rid of this woman? I've tried so hard to keep the peace because she is my husbands sister. I just want left alone, she was never like this before I got pregnant and I'm just so ready to pull all of my hair out one by one.