Foreign News. Kaci Sullivan, formally a woman, while still undergoing the process of transiting into a transgender man has given birth to a healthy baby five years after having his first child as a woman. The 30 years old has become the first person in the world to give birth while living as both genders. Kaci was in labour for seven days and eventually underwent a C-section before welcoming Phoenix, who weighs a healthy 8lbs 9oz. Prior to the birth of Phoenix, Kaci already had one child, five-year-old Grayson, while living as a woman with his ex-husband before coming out as transgender. He said giving birth doesn't make him feel any less masculine because he doesn't see pregnancy as inherently feminine. Kaci from Wisconsin, USA, has become the first to give birth while living as both genders.