"As counsel for appellee admitted during oral argument, “the State only has one interest and that is the protection of the life of the unborn child.” The question then becomes whether this interest is sufficiently compelling to overcome the couple’s or woman’s fundamental right to privacy and autonomy. In this regard it is revealing to examine other aspects of the State’s attitude toward the fetus. Such an inquiry reveals that only in the area of abortion does the State exhibit an interest in the fetus or treat it as having legal personality."