Am I an asshole ?

So my MIL is staying with us because my SIL is in the hospital after COVID and an overdose that almost killed her… My MIL has been living in Illinois with a third cousin or something like that that basically lets her stay and cook for him while she gets back on her feet after a lot of bad decisions. I’m kinda annoyed at the fact that she doesn’t know when she’ll be leaving… mind you I’m 29 weeks pregnant and I have a 4 year old so my hormones and mood aren’t the best lately… also we lived with her while I was pregnant 4 years ago and she got us evicted cause all she wanted to do was partying, we payed all the bills and groceries and all she had to do is pay rent which she didn’t so I kinda hold a grudge over that… what I’m trying to say is that she’s trouble, she’s doing better but she stopped taking her meds just so she can drink which she shouldn’t, and she thinks she’s helping us but not really I mean I took care of my son and our apartment for 4 years now… if she cooks( it’s been only like 3 times in a month) she’s leave the kitchen a mess! She forgets to close the gate we put up for our son and I feel like she only adds to unnecessary stress! Also I’m gonna need her gone for when our second is born cause my parents are coming to help for almost 2 months… Am I being an asshole? She’s not a bad person and we have a good relationship but she drives me nuts! She’s the kind of person you can only have in small doses. She’s irresponsible in so many ways… and we can’t afford to take care of a grown woman why would complain about government hands outs but she’s the one on those programs lol