London, Jan 30 : US President Barack Obama's wife Michelle is pregnant with her third child, if celebrity blogger Perez Hilton's `rumour' is to be believed.

In a posting on perezhilton. com he writes: "This is completely unconfirmed and at this point just a ''rumour'' but ... we''re hearing the talk in DC is that Michelle Obama is pregnant.

"Could this be true????? It''d be happy news! Hopefully it''s a boy!"

Michelle and Barack, 47 - who already have two daughters, Malia, 10, and Sasha, seven - have stated in the past that they intended to have no more children, reports the Daily Star.

An insider admitted: "Anything can be done to hide these sorts of rumours and Barack and Michelle would not have wanted anything to detract from the importance of the inauguration day.

"Their advisers will have been kept up to speed and it is very possible that there may be some announcement in the very near future."

Meanwhile, the Washington branch of the London-based Madame Tussauds wax museum said that it is to add Mrs Obama to its collection.

The waxwork of America''s first black first lady will be unveiled in March after designers in London complete their plans. (ANI)