Strong Woman Carry How Many Babies Is A Woman's Body Built To Carry?

How many babies is a woman's body built to carry? - strong woman carry

I know that women in California, has 8 children, so I really can not all be healthy, because many of them. How many babies can a woman take the time to do all born healthy and strong?
My friend told me that the twins of the maximum amount you are unhealthy, started before the embryos can be, but I do not know.