This is actually sort of the opposite compared to a premature situation. There are times when a child does not properly develop even through a natural or normal pregnancy period. Some organs might not have developed or were grown properly, sometimes even at all. In fact, there have been periods where one kidney grew just fine but the other never did. All of the stuff grew the way it was supposed to for the development of said kidney, except for the kidney itself. It’s as if the kidney was cut out using Photoshop. Artificial wombs will be able to do the same thing they do for premature babies. The mother can give birth like normal, then the artificial womb takes over to offer a longer gestation period. Giving the child the ability to grow or develop organs and even address conditions that might need longer gestation.