Stacey Herald is set to be the world's smallest mother again with the birth of her third child.
Her pregnancy goes against the advice of her doctor, who believes that it could be fatal due to her size. suffers from Osteogenesis Imperfecta, more commonly known as 'brittle bones disease'
The disease leaves Stacey more vulnerable to fractures, and prevents her from growing any taller than 2 feet and 4 inches.
Stacey, who lived in Kentucky, is currently at week 30 of her pregnancy, and can no longer hug her two children or move without a wheelchair thanks to her expanding tummy.
Going against her doctors advice, Stacey and her husband Will felt that getting pregnant again was safe, as she has already survived two other pregnancies. Her first child, has been diagnosed with the same disease, but her second child is completely healthy.
Sufferers of OI have a 50% chance of passing it on to their children, although the couple have strong hopes that their third child will be born healthy.
Whilst experts are usually happy for women with OI to commence with a pregnancy, Stacey is an exception due to her short stature. Stacey could encounter problems with overcrowded internal organs, issues with respiratory functions, vertebral crush fractures and increased bone pain.