MIL nightmare

Maybe I'm over reacting but I am ready to pull my hair out!! I dont care for my mil but my husband insisted we help her. Back story: she gave my husband and his 3 siblings up for adoption when they were toddlers because she was young and wanted to live her own life without the burden of children and only started having a relationship with any of them after they were adults. So she didnt raise or take care of my husband. She is now 52 years old and living with us and our 3 children. Her only job is to watch the youngest child(the other 2 are in school) and keep the house up while my husband and I work. We both work full time day jobs and I'm 37 weeks pregnant. We provide EVERYTHING for this grown ass woman. Hygiene,toiletries,cigarettes,food,clothes, dr appointments, medications, everything. Most days she doesnt do anything around the house. (I washed a load of clothes a week ago and asked her to take them out of the dryer and they were still there today when i went to wash clothes 😲) she lays around using our internet for games and facebook, watching our cable tv, and eating junk food all day. Yet with all the privileges she has all this woman does is whine and complain like a child! Oh I woke her up while getting my kids ready for school, I dont have anymore chips in the kitchen(she ate 4 bags in 2 days), I didnt buy the soda she likes to drink, shes been out of cigarettes for 2 hours... Seriously!?! I'm really just venting before I blow up on this woman but I mean really am I over reacting? I have been moody due to pregnancy but I've really HAD it with this woman!!! Ugh!

*UPDATE* I have not asked my husband to kick her out, if I did I'm sure that he would but I don't want to put him in that position because even though she didn't raise him she is his mother and then I would feel like a bitch for making him put her back on the streets.