A technique called “in vitro fertilization” (IVF) now makes it possible to gather eggs from the mother, fertilize them with sperm from the father, and place the embryo into the uterus of a gestational surrogate

Ovarian tissue cryopreservation is an method of fertility preservation in which the outer layer of an ovary, containing a large number of immature eggs, is taken out of the body and frozen for future use

Embryo donation or third party reproduction. The giving of embryos remaining after one family’s in vitro fertilisation to either another person or couple for implantation or to research

Egg donation is the process by which a woman donates eggs to enable another woman to conceive as part of an assisted reproduction treatment or for biomedical research