A mum with a rare heart-shaped uterus has defied the odds and given birth to a 'one-in-500-million' pair of twins.
Karen Troy, 25, has opened up about her pregnancy saying that she was shocked to discover that she was pregnant with twins and had a bicornuate uterus - which means it is heart-shaped - in March 2021.
The chance of becoming pregnant with twins with a heart-shaped womb is roughly one in 500 million.