Sister - In - Law

My Sister - In - Law is renting a room from my fiancé and I, until her boyfriend & her find a place to move in together. I get along with her for the most part, but I am 7 and a half months pregnant & she doesn’t offer to help clean up around the house (specifically the kitchen & living room- the areas she uses). My fiancé and I have a dog & two cats, and she has a bunny. My fiancé approached me this morning, asking if I told his sister that the bunny wasn’t allowed out of her room. I said that I haven’t said anything like that - but I just wanted to make sure the bunny doesn’t dig into our new couches - or go into our room & pee & poop on the floor, as I can’t easily clean it up. She doesn’t feel comfortable talking to me about it, because it’s my house. I’m just irritated that she feels like I’m not making her feel “welcome”