Jean Plaidy - To Hold the Crown: The Story of King Henry VII and Elizabeth of York

here was great consternation in the Palace of Winchester on that misty September day, in the year 1486 for the Queen—who was not due to give birth to her child for another month—had started her pains.
It was extraordinary for only eight months had passed since the marriage. Everyone had been delighted by the Queen’s promise of fruitfulness, and to have given birth nine months after the marriage would have been a most welcome sign, but to do so in eight months was a little disconcerting, though no one could believe for one moment that this might mean anything but the birth of a premature child.