Help my crippled cat

I hate to be the bearer of bad and possibly harsh news, but if you are unwilling to bring her inside, she no longer has any quality of life.

She is a target to any animal outside, as well as a risk for infection from dragging her limbs as the hide will come off.

Take her to the vet, you are never going to know for sure if she can be helped or not and how much it will cost.

Two weeks is not enough time for anything to have 'set' as far as bones.

If she can't be helped, or if it is too expensive, or if the help she needs is something you are unwilling to do, then humane euthanasia is the kindest option.

I am sorry you and your cat are going through this.

Cats do not show pain even when they are in pain. So there is no way to know if she is in pain or not. 

As Arlyn said, you won't know if she can be treated unless you take her to the vet. You really need to do this. It could be she has a pinched nerve and there may be something the vet or you can do so that she will heal and regain use of her legs. 

If this is your cat, whether indoors or outdoors, then it is up to you to care for her even in this condition. To her, you are her mommy and she desperately needs you to do the heavy lifting right now- as hard as it may be for you, face up to the situation, take control, take her to the vet. 

No matter what, she should not be left outside for other animals to prey upon, or for someone else to clean up, now that she cannot walk and cannot control her bladder. If it were you, you wouldn't want to be left in this condition, fed outside but without use of your limbs to run from prey, not being able to tell anyone whether or not it hurts, or without even being taken to the doctor to find out what happened to you.