No, premature babies are born all the time and live to be full grown adults that live happy lives. Then when a baby in the womb has not be born yet is damaged in some way like someone punches the mother in the stomach, what do you do then when the baby dies? To that mother, it is her baby.
Ask King Solomon. One of the cases before him was about that exact kind of question.
You have missed the point. OK, I get that the parents wanted a baby and didn't get one. For them, no matter how you call it, it was a tragic loss and I am deeply sorry for them. To re-answer Isaac's question, it was a horrific tragedy and a terrible event for them.
But technically, a fetus doesn't have the rights of a person until some specific and definable moment, event, ... something. For the sake of this discussion, I don't CARE whether the birth was full term, premature or long overdue. My question was about how the death would be legally classified if it happened during the birth event before the fetus had popped out all the way. At what point does the fetus become a child?
Remember that to some religions, mostly among the evangelical groups, it is "first breath" (derived from Solomon's "the breath is the life" pronouncement.) For Judaism, it is the severing of the umbilicus. Other religions pick other anchoring points for the beginnings of life as a person.
State laws also impinge in this discussion, but the U.S. Constitution only mentions "natural born citizens" which generally has been taken to mean "after the birth event." (OK, it also mentions "naturalized citizens" but that requires the putative citizen to be old enough to take an oath.)