Thomas Beatie, the transsexual man who made headlines after becoming pregnant, has given give birth to a baby girl today.
The birth at a hospital in Bend, Oregon, was natural, according to a source, though earlier reports said that Mr Beatie planned to have a Caesarean section.
"She's really cute, really pretty," the source told ABC News.
Mr Beatie, 34, was born a woman - Tracey Lagondino - but had his breasts surgically removed and began taking males hormones several years ago.
He legally changed his gender, grew a wispy beard and married a woman but retained his primary female sexual organs so he could one day get pregnant.
His wife, Nancy had had a hysterectomy some years earlier.
Mr Beatie sparked an international furore in March after he announced he was pregnant. "I feel it's not a male or female desire to have a child," he later told Oprah Winfrey on US television.
"It's a human need. I'm a person and I have the right to have a biological child."
Before becoming pregnant, Mr Beatie stopped the testosterone injections he had been receiving for his sex change.
He and his wife bought donor vials from a cryogenic sperm bank and he was inseminated at home.
Doctors say Mr Beatie is not the first transgender man to give birth. Writing in March, he said: "I will be my daughter's father and Nancy will be her mother. We will be a family."
Caesarean section: 剖腹产