Prince Harry is so excited about becoming an uncle he has been telling friends he's expecting a nephew, according to British reports.
Bookies have offered 1/3 on the Duchess of Cambridge having a girl, and 5/2 for a boy, even though Kate and William have made no official announcement about the baby, reported the Daily Mail.
"Harry has been telling everyone Wills and Kate are having a boy and how thrilled he is at the prospect of having a little nephew," a source told the Daily Mail. "He said the whole family were excited about it. Apparently Kate has always wanted a boy. They're really working hard on baby names now, and think they have it sorted."
Princess Eugenie, the younger daughter of Prince Andrew, had also been telling friends the baby, due in July, was going to be a boy.
No decision has been made where Kate will have the baby, but the choice has narrowed to two hospitals, according to reports.
Princess Diana gave birth to William and Harry at St Mary's Hospital in Paddington, West London, while there is speculation that the child could be born at the Royal Berkshire Hospital – the birthplace of Kate and her sister Pippa.
In March the duchess was thought to have the word "daughter" on the tip of her tongue while working a crowd in the northern English town of Grimsby.
She was being given a teddy bear as a gift from a well-wisher when she nearly said the d-word. "Thank you, I'll take that for my d . . ." she said, but stopped there.
Days later she revealed she had bought a light-blue pram.