Multiple times, Mary showed signs of being pregnant, so she thought she was. The first time, everyone in the court believed her, and she prepared a will since it ran in the Tudor family to die during childbirth. After while, however, it was discovered she was not pregnant. A few months later, she thought she was pregnant again, and she again was mistaken. She did become very ill, and died, but her will read that the child would be the heir, but when it did not arrive, Elizabeth was the heir.