First man to have a baby

Thomas Trace Beatie (born 1974)[1] is a public speaker, author, and advocate for transgender and sexuality issues with a focus on trans fertility and reproductive rights.
Beatie, a trans man, had gender reassignment surgery in 2002 and became known as ‘The Pregnant Man’ after he became pregnant through artificial insemination in 2007. Beatie chose to become pregnant because his wife Nancy was infertile, doing so with cryogenic donated sperm.

Beatie’s first pregnancy resulted in an ectopic pregnancy with triplets, requiring emergency surgery and resulting in the loss of all three fetuses.[4] Beatie has since given birth to three children.

Source