Hayden Cross had announced earlier this year that he was pregnant by a sperm donor.
The girl was born on June 16 at Gloucestershire Royal Hospital.
Cross had been living legally as a man for 3 years and was already part-way through hormone treatment to transform to a man.
A 21-year-old man has become the first in Britain to give birth after he put his sex transition on hold to get pregnant by a sperm donor.
http://m.timesofindia.com/world/uk/britains-first-pregnant-man-gives-birth-to-girl/amp_articleshow/59512151.cms