Is OTHER wrong in the post ? POST : So I(23) live with my family and recently my sister and her husband moved in with us with their brand new baby while they close on a house to buy. I rarely spend time at home, I work and i go out and really am only here mostly to sleep, shower, and on the weekends when I spend mornings with them. 

My stepbrother is a teacher so he's gonna from like 7am-5pm and my sister stays at home with the baby. 

Before they moved in, our house was pretty clean. My brother is 15 and he's at school all day and when he's not, he's in his room. My stepdad and Mom work all day so since the house is almost always empty everything was always tidy. 

Ever since they moved in it's been much, much messier. They cook often and don't wash the dishes right away, the share my bathroom with me and now we only have one bathroom because my sister fell in the other tub and broke it with her knee so they have to get it fixed. 

I have cleaned the bathroom/bathtub the last 3 times they've needed to be cleaned mostly because I feel gross in it knowing no one else has cleaned it. I rarely wash dishes unless I use then since I don't cook and am hardly home. 

Today is my 1 day off from work, I worked the last 6 days straight and I was looking forward to literally just vegging out in my bed. My mom called me to ask if he could put away/wash the dishes and clean the bathroom. I'm really annoyed because the dishes are not mine and I've cleaned the bathroom every time it's needed to be cleaned since they moved in. 

I'm going to do it regardless bc it's gross but my mom knows I complain about it and she says I need to help because I also live here and this house isn't a hotel. I understand that but I also don't feel like it's my responsibility to clean after them :/ I don't mind cleaning especially the bathroom but it's just so annoying that I'm expected to do it. I'd feel much better about it if it was asked of me as a favor rather than being expected of me. 

So am I the asshole for being annoyed? I get they have a brand new baby but the difference from how clean our house used to be to how it is now is astounding. It's frustrating to be in a house so messy which is another reason why I'm not around often. 

I guess I'd just like to know if I'm being a dick for being upset with them even though they have a new baby. 