Therefore, in recognition of the biological reality that human life begins at the moment of fertilization, the unborn child is entitled to the protection of the law under all circumstances and at every stage of pregnancy. In those extraordinarily rare instances in which a pregnancy poses an immediate and life threatening risk to the mother, she should be allowed to direct her physician to perform any medical procedure that is necessary to save her life. In that effort, however, the physician must always do whatever is possible to save the life of both mother and baby. If as an unintended consequence of saving the mother's life, her unborn child loses its life, that should be viewed as a profoundly regrettable but lawful outcome.