ABC News reported that Beatie gave birth to a son early Tuesday in Bend, Oregon, and that the child would be nursed by his wife, Nancy.
Beatie, 35, was born a woman, but legally changed his gender. He decided to get pregnant after it emerged that Nancy could not conceive. Photos of a bearded pregnant Beatie caused a sensation last year.
ABC News quoted sources close to the couple as saying that it was a natural childbirth and not via Caesarean section. Beatie revealed last year that after giving birth to his first child he did not start again taking male hormones to allow him to get pregnant.