The world's smallest mother is about to give birth for the third time - despite warnings she is risking her life.

Stacey Herald, who is just 2ft 4in tall, was told that becoming pregnant could kill her, but bravely defied doctors to have two babies half her height. The 35-year-old from Dry Ridge, Kentucky in the U.S. suffers from Osteogenesis Imperfecta, which causes brittle bones and underdeveloped lungs, and means she failed to grow. Mrs Herald, who uses a wheelchair, and her husband Will, who is 5ft 9in, are eagerly awaiting the birth of their third baby, due in the next four weeks.

Currently as wide as she is tall, she cannot hold her daughter because her belly gets in the way, and has to rely on her husband to do most things around the house. She admits being pregnant is ‘uncomfortable' and leaves her bedridden for weeks on end. By the time the new addition, a boy, is one, he will already tower over his mother. But despite all the obstacles, the mother and father, a trainee priest, say they want even more children. The couple met in 2000 while working for a supermarket in their home town.