Natural mother becomes foster mother: Not every infertile woman can receive treatment through in vitro fertilization. Neither can everyone who seeks help through this procedure necessarily gain the child they long for.
生母變養母但是，並非所有的不孕者都能接受試管嬰兒科技的治療，也不是所有不孕者藉由試管嬰兒科技的協助，都能順利求子得子。