Almost 18,000 babies have been born through donated gametes (sperm and eggs) and embryos in the UK since the regulatory Human Fertilisation and Embryology Authority was set up in 1991. Anonymous donations have allowed infertile heterosexual couples, gay couples and single women to create families that would otherwise never have existed. Between 1940 and 1990, tens of thousands more were conceived mainly using donated sperm, the low-tech end of gamete donation which has been around for over a century.
While the first baby conceived with a donated egg was not born until 1987, the first documented case of donor insemination took place in 1884, when the Philadelphia-based doctor William Pan coast inseminated a sedated woman with a medical student's sperm without her permission or knowledge. Sperm insemination remains, by far, the most common donor conception procedure.
No one can say exactly how many people alive in Britain today were conceived through donor conception-estimates put it at around 40,000.
The received wisdom was that secrecy was in everyone's interests. The biological mother and her husband usually wanted to pretend that, genetically, the child was completely theirs. The clinics encouraged women to go home after artificial insemination and make love with their infertile husbands. Then the couple could cling to the possibility-however remote-that the child was really theirs. Some clinics even mixed a sterile husband's sperm with the donor's to keep the parental fantasy alive.
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