"If, despite all the medical evidence and legal history on the point, the unborn child is not to be considered a person within contemplation of the law with legally protectable interests, then Griswold possibly might be stretched to serve as a precedent for the result that the appellants urge this Court to reach. On the other hand, if terminating pregnancy is something different from preventing it, if abortion is different from cosmetic surgery, if the fetus is not in the same class as the wart, and if we are dealing with something other than an inhuman organism, then Griswold is totally inapposite. As medical knowledge of prenatal life has expanded, the rights of the unborn child have been enlarged. And even if it could still be argued that the fetus is not fully the equal of the adult, the law, through centuries of judicial decision and legislation, and following the lead supplied by medical science, has raised the equivalency of that life to such a status that the unborn child may not be deprived of it, absent the demonstrated necessity of protecting a reasonably equivalent interest on the part of the mother. Griswold, of course, presented no such conflict and therefore is not controlling in this case...."