In 2009, a 92-year-old Chinese woman named Huang Yijun delivered a child that she had been carrying for over half a century! The woman went to the hospital complaining of a stomachache, but doctors soon realized that she was carrying what is called a lithopedion, or stone pregnancy
This phenomenon begins as an ectopic pregnancy, or one in which the fertilized egg gets stuck and begins developing somewhere before its intended place in the uterus! The unborn fetus eventually calcifies and remains in its mother's womb. Lithopedions typically remain in their mother's womb for an average of 22 years - Huang Yijun carried her child for almost triple that length of time!