I Still Didn't Know I Was Pregnant

How is it possible that someone could not know they were pregnant twice? In the United States only one in seven thousand women don't know they're pregnant until they go into labour. And for some of these women, as incredible as it may seem, it can happen two times. Brand new series, 'I Still Didn't Know I Was Pregnant...', shares the stories of mothers who have no idea they are pregnant until their baby is actually born.