"I'm pregnant with your baby!"

That stunning pronouncement from a girlfriend of Prince William rocked the future King of England, infuriated his father Prince Charles -- and shook Buckingham Palace to its foundations.

The pregnancy drama led to a furious blowup between William and his father, with Charles warning William: "Stop this wild bed-hopping!"

The issue that is on sale now also reveals the outcome of the girlfriend's pregnancy drama, 19-year-old William's wild London party scene, his girl-crazy antics while in college ... and much more.