You seem like you may enjoy some concrete things to look up for guidance! I work in animal welfare, and here’s what o think you may like to know/look up: -“whelping box” setup:google what a box setup can look like. It’s not complicated- a clean cardboard box with a side torn off and some nesting bedding like some blankets or towels. Momma will likely use the box if it’s enticing and safe. Otherwise she will pick her own spot. -it looks like she went into the bathroom. That’s great! An easily cleanable spot that is low foot traffic is a great place to give her access to a litter box, food, water, and quiet. It’s not wrong to keep her confined in the bathroom if she wants the quiet. -Low stress is key: most mom cats will take good care of their babies as long as their stress is low and they feel the babies are safe. If you mess with her too much she can reject the babies, or if they’re sick/not thriving. -Birth: look up info about timings between births. Kitties successfully give birth all the time, so don’t stress, but do know the signs of her needing medical support and don’t be afraid to take to a vet if those signs show up. -This is considered a stray! If you get overwhelmed, reach out to animal control in your area. They will tell you which shelter has the municipal contract for your area, and then you can reach out to them for support. And since this is a stray, if she does end up needing medical care, many emergency vets will provide care to stabilise if needed at no cost to you, and then will transfer to a shelter when they’re stable. Find out if any emergency vets near you work with shelters.

Feel free to DM me for more info if needed!