I know some people on here might sound a little rude, But they onnly mean for the best. You really should get the kittys fixed. I am sure if you call a local shealter, they can help with the spay, there are far to many strays running around, and we need to try to control what we have in our own homes. If you dont have money to spay them, how do they go to the vet? How often have you taken them to the vet? Please get them spayed....