The wife of Conservative leader David Cameron is pregnant, a party spokesman has confirmed.
"The baby is due in September and David and Samantha are completely thrilled," said a statement.
The new arrival will be the couple's fourth child and follows the tragic loss of their oldest son Ivan in February 2009.
Married for almost 14 years, David, 43, and Samantha, 38, also have a daughter, Nancy, and a son Elwen.
The announcement comes days after Mr Cameron said his wife would take a more prominent role in the election campaign.