Samantha Cameron is expecting a baby in September.

Mrs Cameron and her husband, the Conservative Party leader David Cameron, were said to be "completely thrilled" by her pregnancy.

Mr Cameron has recently indicated in interviews - including a recent TV quiz by Alan Titchmarsh at a time when he must have known of his wife's condition - that he would be happy to add another child to their family.

A Conservative Party spokesman said: "The baby is due in September and David and Samantha are completely thrilled."