becouse some say stop making ypur cat pregnant after her first birth giving and they thats its not good for them to get pregnant again , so what do you think?
Are you a breeder? If not, it's best to have your cat spayed. There are too many cats in the world and not enough homes for all of them. It's really hard to find responsible home for kittens in most places. So in that regard it's not good for your cat to get pregnant---most of the kittens will not have good homes to go to .
As for the health of the mother, breeders do allow their females to have more than one litter. It takes a bit of extra care to keep a breeding female healthy, but if she's well cared for it shouldn't be bad for her to have a few litters, if properly spaced out. And of course breeders need to be aware of the symptoms of reproductive diseases.
And of course it's very unhealthy for a female to breed uncontrolled, having a litter every heat, even after she's too old. This usually leads to an early death .
It is not good to let your cat have repeated pregnancies that are very close together (less than a year apart).
Being pregnant drains their bodies of nutrients (because all their nutrients are going to the kittens). So if the cat gets pregnant again soon after her last litter, it can be very tough on her body because she hasn't had time to recover from the other pregnancy.
Also repeted pregnancies/litters or even many repeated heat cycles can put a cat at high risk to develop Pyometra which is a deadly uterine infection.