Nowadays, single women can get pregnant by resorting to semen from a donor and artificial insemination.

The donation of semen is an anonymous, confidential and secret process.

As with the women who donate ova, semen donors must fulfil a series of legal requirements which include a full serological analysis to discard sexually transmitted and infectious diseases, a personal and family medical record that discards hereditary diseases and a psychological and intellectual profile acceptable for the purpose at hand.

In the case of single women who do not have their own ova (menopause, premature ovarian failure, etc.), the alternative would be to resort to embryo donation.

The donated embryos come from couples whose assisted reproduction treatment has led to an excess of embryos, which they then decided to donate. As with gamete donors, the donors of embryos must also meet the above-mentioned legal requirements.