Protesters demonstrate against a reform bill that will widen access to medically assisted procreation to lesbian couples and single women, in Paris, France, October 6, 2019. The placard reads: "Falsified filiation (line of descent) = stolen identity." REUTERS/Christian Hartmann

Protesters demonstrate against a reform bill that will widen access to medically assisted procreation to lesbian couples and single women, in Paris, France, October 6, 2019. REUTERS/Christian Hartmann

Protesters demonstrate against a reform bill that will widen access to medically assisted procreation to lesbian couples and single women, in Paris, France, October 6, 2019. REUTERS/Christian Hartmann

Protesters demonstrate against a reform bill that will widen access to medically assisted procreation to lesbian couples and single women, in Paris, France, October 6, 2019. REUTERS/Christian Hartmann

Protesters demonstrate against a reform bill that will widen access to medically assisted procreation to lesbian couples and single women, in Paris, France, October 6, 2019. REUTERS/Christian Hartmann

Protesters demonstrate against a reform bill that will widen access to medically assisted procreation to lesbian couples and single women, in Paris, France, October 6, 2019. REUTERS/Christian Hartmann

A French flag is pictured as protesters demonstrate against a reform bill that will widen access to medically assisted procreation to lesbian couples and single women, in Paris, France, October 6, 2019. REUTERS/Christian Hartmann

Protesters demonstrate against a reform bill that will widen access to medically assisted procreation to lesbian couples and single women, in Paris, France, October 6, 2019. REUTERS/Christian Hartmann

A protester holds a sign during a demonstration against a reform bill that will widen access to medically assisted procreation to lesbian couples and single women, in Paris, France, October 6, 2019. The sign reads "For rent. Soon in France?". REUTERS/Christian Hartmann

A protester attends a demonstration against a reform bill that will widen access to medically assisted procreation to lesbian couples and single women, in Paris, France, October 6, 2019. REUTERS/Christian Hartmann

A protester holds a white rose during a demonstration against a reform bill that will widen access to medically assisted procreation to lesbian couples and single women, in Paris, France, October 6, 2019. REUTERS/Christian Hartmann

A protester holds a white rose during a demonstration against a reform bill that will widen access to medically assisted procreation to lesbian couples and single women, in Paris, France, October 6, 2019. REUTERS/Christian Hartmann

Protesters demonstrate against a reform bill that will widen access to medically assisted procreation to lesbian couples and single women, in Paris, France, October 6, 2019. REUTERS/Christian Hartmann

Protesters demonstrate against a reform bill that will widen access to medically assisted procreation to lesbian couples and single women, in Paris, France, October 6, 2019. REUTERS/Christian Hartmann TPX IMAGES OF THE DAY

Protesters demonstrate against a reform bill that will widen access to medically assisted procreation to lesbian couples and single women, in Paris, France, October 6, 2019. REUTERS/Christian Hartmann

Protesters demonstrate against a reform bill that will widen access to medically assisted procreation to lesbian couples and single women, in Paris, France, October 6, 2019. REUTERS/Christian Hartmann

Protesters demonstrate against a reform bill that will widen access to medically assisted procreation to lesbian couples and single women, in Paris, France, October 6, 2019. REUTERS/Christian Hartmann

Protesters demonstrate against a reform bill that will widen access to medically assisted procreation to lesbian couples and single women, in Paris, France, October 6, 2019. REUTERS/Christian Hartmann

Protesters demonstrate against a reform bill that will widen access to medically assisted procreation to lesbian couples and single women, in Paris, France, October 6, 2019. REUTERS/Christian Hartmann

Protesters demonstrate against a reform bill that will widen access to medically assisted procreation to lesbian couples and single women, in Paris, France, October 6, 2019. REUTERS/Christian Hartmann

A protester holds a sign during a demonstration against a reform bill that will widen access to medically assisted procreation to lesbian couples and single women, in Paris, France, October 6, 2019. The sign reads "Where is your father?". REUTERS/Christian Hartmann

A protester holds a sign during a demonstration against a reform bill that will widen access to medically assisted procreation to lesbian couples and single women, in Paris, France, October 6, 2019. The sign reads "Who is my father?". REUTERS/Christian Hartmann

A protester holds flags of conservative group La Manif Pour Tous during a demonstration against a reform bill that will widen access to medically assisted procreation to lesbian couples and single women, in Paris, France, October 6, 2019. REUTERS/Christian Hartmann

A protester holds a sign during a demonstration against a reform bill that will widen access to medically assisted procreation to lesbian couples and single women, in Paris, France, October 6, 2019. The sign reads "For rent. Soon in France?". REUTERS/Christian Hartmann

Medical technicians prepare embryo and sperm samples for freezing at the Laboratory of Reproductive Biology CECOS of Tenon Hospital in Paris, France, September 19, 2019. Picture taken September 19, 2019. REUTERS/Benoit Tessier

Professor Rachel Levy, head of the Reproductive Biology Department CECOS, poses in a laboratory at the Tenon Hospital in Paris, France, September 19, 2019. Picture taken September 19, 2019. REUTERS/Benoit Tessier

A medical technician prepares embryo and sperm samples for freezing at the Laboratory of Reproductive Biology CECOS of Tenon Hospital in Paris, France, September 19, 2019. Picture taken September 19, 2019. REUTERS/Benoit Tessier

A medical technician selects eggs for an in-vitro fertilization (IVF) procedure called Intracytoplasmic Sperm Injection (ICSI) at the Laboratory of Reproductive Biology CECOS of Tenon Hospital in Paris, France, September 19, 2019. Picture taken September 19, 2019. REUTERS/Benoit Tessier

A medical technician injects sperm directly into an egg during in-vitro fertilization (IVF) procedure called Intracytoplasmic Sperm Injection (ICSI) at the Laboratory of Reproductive Biology CECOS of Tenon Hospital in Paris, France, September 19, 2019. Picture taken September 19, 2019. REUTERS/Benoit Tessier

A medical technician prepares embryo and sperm samples for freezing at the Laboratory of Reproductive Biology CECOS of Tenon Hospital in Paris, France, September 19, 2019. Picture taken September 19, 2019. REUTERS/Benoit Tessier

Frozen pipes are pictured at the Laboratory of Reproductive Biology CECOS of Tenon Hospital in Paris, France, September 19, 2019. Picture taken September 19, 2019. REUTERS/Benoit Tessier

A poster promoting medical assistance for procreation is displayed in the lobby of the Laboratory of Reproductive Biology CECOS of Tenon Hospital in Paris, France, September 19, 2019. Picture taken September 19, 2019. REUTERS/Benoit Tessier

A privacy zone mark is pictured at the Laboratory of Reproductive Biology CECOS of Tenon Hospital in Paris, France, September 19, 2019. Picture taken September 19, 2019. REUTERS/Benoit Tessier

A medical technician injects sperm directly into an egg during in-vitro fertilization (IVF) procedure called Intracytoplasmic Sperm Injection (ICSI) at the Laboratory of Reproductive Biology CECOS of Tenon Hospital in Paris, France, September 19, 2019. Picture taken September 19, 2019. REUTERS/Benoit Tessier

A medical technician prepares embryo and sperm samples for freezing at the Laboratory of Reproductive Biology CECOS of Tenon Hospital in Paris, France, September 19, 2019. Picture taken September 19, 2019. REUTERS/Benoit Tessier

A medical technician prepares embryo and sperm samples for freezing at the Laboratory of Reproductive Biology CECOS of Tenon Hospital in Paris, France, September 19, 2019. Picture taken September 19, 2019. REUTERS/Benoit Tessier

A medical technician prepares embryo and sperm samples for freezing at the Laboratory of Reproductive Biology CECOS of Tenon Hospital in Paris, France, September 19, 2019. Picture taken September 19, 2019. REUTERS/Benoit Tessier

Professor Rachel Levy, head of the Reproductive Biology Department CECOS, poses in a laboratory at the Tenon Hospital in Paris, France, September 19, 2019. Picture taken September 19, 2019. REUTERS/Benoit Tessier

A medical technician selects eggs for an in-vitro fertilization (IVF) procedure called Intracytoplasmic Sperm Injection (ICSI) at the Laboratory of Reproductive Biology CECOS of Tenon Hospital in Paris, France, September 19, 2019. Picture taken September 19, 2019. REUTERS/Benoit Tessier

Frozen vials of sperm are seen preserved in an azote cooled container in a laboratory in Paris, France, September 13, 2019. Picture taken September 13, 2019. REUTERS/Christian Hartmann

A medical lab technologist operates an embryo vitrification during an intra cytoplasmic sperm injection process (ICSI) at a laboratory in Paris, France, September 13, 2019. Picture taken September 13, 2019. REUTERS/Christian Hartmann

Frozen vials of sperm are seen preserved in an azote cooled container in a laboratory in Paris, France, September 13, 2019. Picture taken September 13, 2019. REUTERS/Christian Hartmann

A medical lab technologist operates a decoronisation during an intra cytoplasmic sperm injection process at a laboratory in Paris, France, September 13, 2019. Picture taken September 13, 2019. Picture taken September 13, 2019. REUTERS/Christian Hartmann

Frozen vials of sperm are seen preserved in an azote cooled container in a laboratory in Paris, France, September 13, 2019. Picture taken September 13, 2019. REUTERS/Christian Hartmann

A medical lab technologist operates an embryo vitrification during an intra cytoplasmic sperm injection process (ICSI) at a laboratory in Paris, France, September 13, 2019. Picture taken September 13, 2019. REUTERS/Christian Hartmann

Frozen vials of sperm are seen preserved in an azote cooled container in a laboratory in Paris, France, September 13, 2019. Picture taken September 13, 2019. REUTERS/Christian Hartmann

A medical lab technologist operates an embryo vitrification during an intra cytoplasmic sperm injection process (ICSI) at a laboratory in Paris, France, September 13, 2019. Picture taken September 13, 2019. REUTERS/Christian Hartmann

A medical lab technologist operates during an intra cytoplasmic sperm injection process (ICSI) at a laboratory in Paris, France, September 13, 2019. Picture taken September 13, 2019. REUTERS/Christian Hartmann

A medical lab technologist operates an embryo vitrification during an intra cytoplasmic sperm injection process (ICSI) at a laboratory in Paris, France, September 13, 2019. Picture taken September 13, 2019. REUTERS/Christian Hartmann

Frozen vials of sperm are seen preserved in an azote cooled container in a laboratory in Paris, France, September 13, 2019. Picture taken September 13, 2019. REUTERS/Christian Hartmann

Heads turn when An Hui and Ye Jianbin walk down a street in the Chinese city of Shenzhen with their triplets, who were conceived with help from a human egg donor and a surrogate mother. People are mostly curious about their unconventional family, said An, adding that it was not always the case in China where gay couples have long battled conservative Confucian values. The two men wanted a family and began exploring the option of in vitro fertilisation (IVF), with help from a human egg donor and a surrogate mother. In 2014, a Thai woman gave birth in Hong Kong to three boys Ð An Zhizhong, An Zhiya and An Zhifei - who were conceived using human eggs provided by a German fashion model, according to An. REUTERS/Jason Lee SEARCH "LGBT TRIPLETS" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES. TPX IMAGES OF THE DAY. Matching text: CHINA-LGBT/CHILDREN

A Cape Buffalo rests with her newborn calf born at a zoo in Pretoria, South Africa, January 1, 2000. REUTERS/Juda Ngwenya/File Photo

CHINA-HEALTHCARE/IVF - Charts comparing IVF cycles per million population by province in China. (SIN03)

People protest against the decree signed by Costa Rica's President Luis Guillermo Solis, legalizing in-vitro fertilization (IVF) in front of the Supreme Court in San Jose, Costa Rica September 15, 2015. REUTERS/Juan Carlos Ulate

People protest against the decree signed by Costa Rica's President Luis Guillermo Solis, legalizing in-vitro fertilization (IVF) in front of the Supreme Court in San Jose, Costa Rica September 15, 2015. REUTERS/Juan Carlos Ulate

A man holds a sign that reads "Error, terror, pain, in vitro" during a protest against the decree signed by Costa Rica's President Luis Guillermo Solis, legalizing in-vitro fertilization (IVF) in front of the Supreme Court in San Jose, Costa Rica September 15, 2015. REUTERS/Juan Carlos Ulate

People display a banner during a protest against the decree signed by Costa Rica's President Luis Guillermo Solis, legalizing in-vitro fertilization (IVF) in front of the Supreme Court in San Jose, Costa Rica September 15, 2015. The banner reads "Why fight against abortion? One possible solution, do not kill. Give them to us and we will take care of them. Because I have the right to be born". REUTERS/Juan Carlos Ulate

(L-R) Eduardo Vio Grossi, Diego Garcia-Sayan, Humberto Antonio Sierra, Alberto Perez and Eduardo Ferrer, judges of the Inter-American Commission on Human Rights (IACHR), attend a hearing to monitor the government's compliance with the ruling lifting the country's ban on in-vitro fertilization (IVF), in San Jose, Costa Rica September 3, 2015. President Luis Guillermo Solis' government released a draft decree on Thursday legalizing IVF, three years after the IACHR ruled that the prohibition of IVF in Costa Rica violated the human rights of infertile couples trying to conceive, according to local media. REUTERS/Juan Carlos Ulate

Costa Rican state lawyers Marvin Carvajal (L) and Viviana Benavides check folders before a hearing convened by the Inter-American Commission on Human Rights (IACHR) to monitor the government's compliance with the ruling lifting the country's ban on in-vitro fertilization (IVF), in San Jose, Costa Rica September 3, 2015. President Luis Guillermo Solis' government released a draft decree on Thursday legalizing IVF, three years after the IACHR ruled that the prohibition of IVF in Costa Rica violated the human rights of infertile couples trying to conceive, according to local media. REUTERS/Juan Carlos Ulate

Costa Rican state lawyer Marvin Carvajal checks folders before a hearing convened by the Inter-American Commission on Human Rights (IACHR) to monitor the government's compliance with the ruling lifting the country's ban on in-vitro fertilization (IVF), in San Jose, Costa Rica September 3, 2015. President Luis Guillermo Solis' government released a draft decree on Thursday legalizing IVF, three years after the IACHR ruled that the prohibition of IVF in Costa Rica violated the human rights of infertile couples trying to conceive, according to local media. REUTERS/Juan Carlos Ulate