Pregnant sister wants to move in with me

For the past month my pregnant sister wants to move in with me at my boyfriends house

My sister is in her mid 20’s and pregnant with her second child that’s due around January

I moved in with my boyfriend 3 months ago and it’s a comfortable lifestyle to the point I quit my job and I help my boyfriend manage his properties. I spend most of my days home or on the road. My sister reached out to me and asked if me and my boyfriend can meet up and talk I really thought it was to catch up on her pregnancy and I get to spend time with my niece. We went to dinner and halfway through she starts to ask about my boyfriend and what’s our plans for the future. I said that we plan on going on a trip in December and that’s the most interesting that’s been happening in our lives but other than that we’re doing good. She asked about the house and if we will downsize. I answered her truthfully and said no we had a conversation about it and he didn’t want to leave the home he grew up in. She flat out asked me if she and he 2 kids can move in. I was stunned and she started to basically pitch her sale to me. But if I’m being honest I can’t and don’t want her to move in. My sister is one of the most unorganized and out of order person I know when I still loved with our mom the house was always a mess and that was the norm for them I always hated going home or even bringing people home because it’s embarrassing. Any attempt I made to clean and keep the house clean was met with “ don’t touch my stuff, why did you move this and where did you put this. She treated the house and her closet. When my niece was born baby diapers used to be piled up by the end of the couch. It was always a mess and a argument everyday. Ever since I moved in with my boyfriend I have realized that living in a toxic house hold did a lot of damage to me and my mental state. I go out of my way to keep my boyfriends home clean. I find it therapeutic. And to bring her in to the house and jeopardize that.. gave me a panic attack. My sister said that she needs the extra space and the help

She always need the help but when I needed her she flat out ignored me. When my uncle molested me she walked away when I tried to tell her.. i have been holding this grudge against her for 5 years now I can’t bring my self to help her this time. I’ve always been there for my sister and I think she really used me as a free baby sitter and now she wants to use me as a free place to live.

My boyfriend said that she’s more than welcomed to move in but only if it’s ok with me. She answered for me. And said that I am ok with it and she can move in to the apartment we have upstairs. I use that apartment as a my safe space I use it for my hobbies. My boyfriend said that I can use the apartment when ever I need space and time to reflect. Years of therapy made it possible to finally realize that my sister doesn’t care about me. And I’m fully committed to keeping my safe space to my self.

She cried to me about her situation at home and how she needs to get out. My sister’s boyfriend lives with her at my moms house and the baby she’s carrying now belongs to another man. I’m realizing that he doesn’t seem to be in the picture if she’s asking me for help.

Any outside advice would help I think I needed to find but I can’t leave my nieces basically homeless