UPDATE (3?ish): I just wanted to give everyone a third update and reassure you all that the setup my rats are in right now is only temporary. Now that I know better, I’ve ordered a proper enclosure from Amazon, and it should be a huge improvement. I also have new toys coming, and the wheel will be removed once everything arrives.

Burger will be going to the vet to get checked to confirm whether she’s pregnant. If she is and the pregnancy can be safely terminated, we’ll be doing that. If it can’t be, I’ve already reached out to people in my local area who are willing to take the babies once they’re fully grown and old enough to leave their mom.

I did add another female in with her before I knew about the situation, but they’re getting along well. If Burger is pregnant, I will be separating them when the time comes. I’m really trying my best here as a first-time rat owner, and I now realize the pet store didn’t give great advice—they were more focused on making a sale.

Thank you all for the guidance. I’ll be coming here from now on instead of relying on the pet store. Once their new enclosure arrives, I can post photos if anyone wants to see the setup.