The typical family who uses donor sperm is changing.
Originally donor insemination was offered exclusively to married couples who were experiencing infertility. Today, infertile couples are still helped by donor sperm but other types of families are as well. Single women are increasingly choosing to have children on their own with the help of donor sperm. Same sex couples are, too. Where 20 years ago it was easier to keep the donor sperm story a secret, it is now much more obvious when a father is not around while a child is growing up.
Children born from donor sperm are learning about the circumstances of their conception in ever increasing numbers. We estimate that now about 4,000 to 5,000 children a year are born in the US as the result of anonymous donor insemination.