04/21/2004 at 12:00 AM EDT
Cherie Blair, 45, a private practice lawyer, and her husband, Tony Blair, 45, Prime Minister of England, their fourth child. She is reportedly 13 weeks along. The Blairs' other children are sons Euan, 15, and Nicholas, 13, and daughter Kathryn, 11. The pregnancy marks the first time in 150 years that a child will be born to a sitting prime minister.