Kick both the parasites out. Keep the cat.

Red flags galore.

Pregnant people need to steer clear of litterboxes. That's it. The cats themselves are fine. Anyone who would have the audacity to steal their host's pet and abandon it somewhere deserves to get kicked out on their a$$, pregnant or not. The fiancée also needs to be dumped for condoning that behaviour. If she thinks that's fine, who knows what she'll do herself in the future. Thank goodness for that neighbour. Poor Billy.

kick them both out have them stay with their mom it seems like the boyfriend had a point when he kicked her out.

That cat could've died! Drop both of these humans, jeez.

Obviously the SIL is psychotic. If she was afraid of the cat, she would not have picked it up and dropped it off somewhere

Run. Saying that as someone who lived with five cats (and two dogs) all through the pregnancy. The only consequence for the baby is that she is crazy about cats. Did get rid of some people, though, really helped.

⚠️PSA ⚠️It takes 1-5 days AFTER the cat defecates for the 💩 to become infectious with toxoplasmosis. If you pooper-scoop daily, then there's zero chance of getting sick from it. Boyfriend clearly had reasons for kicking her out, sister is enabling abuse of the cat and the fiancé... both should go bc they just cannot be trusted. Especially when they don't even contribute!!!

HE🏒🏒 nah! Get rid of the VILE, ENTITLED, MEAN SIL! Cats FIRST! 💕

If you mistreat my pet you will be sorry.

Boyfriend kicking out a pregnant woman should have been the first red flag to not take her in

Someone who treats Billy like that or stands back and condons that behaviour is a walking red flag. So the fiancee doesnt care about OPs beloved cat? What a s**t partner. The sister tries to abandon a house cat? Cruel and disgusting. People show their true selves when they hurt helpless animals. Get rid of them!

Cats before twats.

My dad is an alcoholic and my mom has put up with a lot over the years. After some 20-30 years of sobriety, he was enjoying some work success and decided having a glass of wine or beer with dinner would be fine. It wasn't. Mom had a particular cat that she has rescued from the edge of death and nursed back to health. One night, she shows up ay my house bawling her eyes out. The cat had pissed on the kitchen floor and dad threw him out the door. The dog was in the yard, scared the hell out of the cat and he ran off. I went to the house with my mom and my wife, walked in the door and locked it behind me. I asked my dad if he was done drinking or if he was about to get beaten into the hospital. I've never experienced anger like that, but knowing the cruelty he just performed and seeing my mom broken down like that was just too much. I was absolutely ready to start swinging. In the end, he was so pathetic sitting there I didn't wind up doing it.

Poor Billy :(( Anyone who is mean to animals is mean-spirited.

Get rid of the fiance too

Kick the beyitch out and tell her NEVER to get within 50 miles of your place.

GET THOSE FILTHY ANIMALS OUTTA YOUR HOUSE OR ELSE THEY WILL BUTCHER YOUR CAT

No wonder her boyfriend threw her out!

That's a big red flag for how she would treat a child also. Looks like your fiancée is about to be squat on and bled dry, that includes you, Dude.

After the baby's born the cat will definitely disappear if he hasn't already.

A huge NTA! Definitely kick the SIL out! Anyone who'd do that to a defenseless cat doesn't deserve to stay in your home, and, in my book, has no business having custody of a defenseless child. I hate to think what kind of mother that woman is going to make, and your fiance should have enough sense to understand that. You might want to rethink your relationship, since your fiance defended the SIL who abused your cat and will undoubtedly be an equally horrid parent. You don't need that in your life.

So why was there no mention of why her boyfriend kicked her out to begin with? There's got to be a reason. If her behavior with the cat is any indication, he was right to give her the boot. My concern is if she treats a cat this way, what will she do when the kid comes along?

Making excuses for someone to mistreat an animal is almost as bad as abusing the animal. OP needs to dump them BOTH. I can see why the boyfriend kicked the pregnant woman out, she sounds like a real treat.

Anyone who abuses animals, will abuse children , the elderly and the handicapped; in short those who are least able to defend themselves.

Let me help you get rid of the toxic waste. *Flexes her claws*

Oh my god!! When will people stop being afraid if cats + pregnant women or cats + babies. Have some common sense, everything will be fine. This isn't 13th century Europe.

Rage doesn’t begin to cover it. I would have killed the b***h.

Evict her and your fiance. The pair are cruel and would never actually have a pet themselves. If my partners' relative did something like this, my partner better kick them out or they are both gone!

Kick them both out, they deserve each other. They can find jobs and pay their own bills. No wonder the boyfriend kicked her out. Maybe have SIL arrested for animal cruelty; she can have her kid in jail.

Well, not a pet fanatic myself and usually i like people more than other animals, but in this case I 100% agree with the cat guy.

NTA. When did fiancé's sister decide that SHE was ruling the roost? How DARE she put her hands on someone else's pet and attempt to dispose of him! Dump HER, and if your fiancé gives you any grief about it, she can follow suit. They're more toxic than the litter box.

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Cats shouldn't be around pregnant people. This is true. But she knew you had a cat and came to stay anyway. Kick her out and if your GF says no, tell her she is more than welcome to go with her.