US woman with rare double uterus gives birth twice in two days going through a rare “one in a million” pregnancy.

Kelsey Hatcher, 32, gave birth to a daughter on Tuesday and a second on Wednesday at the University of Alabama at Birmingham (UAB) Hospital.

Announcing her babies’ arrival on social media, Ms Hatcher described the doctors as “unbelievable”. The girls, although twins, have separate birthdays.

The mother was told at the age of 17 that she had a double uterus (uterine didelphis) – which the UAB described as a rare congenital anomaly affecting 0.3% of women.

And the chances of getting pregnant in both uteruses were even lower, at “one in a million,” according to the UAB.

Such cases are extremely rare. In 2019, a doctor in Bangladesh told the BBC that a woman had given birth to twins almost a month after giving birth to a premature baby in her other womb.

Ms. Hatcher had three previous, healthy pregnancies. This time, she thought she was pregnant in just one womb – until a routine ultrasound revealed there was also a baby in the second.

“We just couldn’t believe it,” said the happy mom.