It's probably the worst kept secret ever, but it's safe to say that Gisele Bundchen has got a baby on board.
When the supermodel took to the beach in her bikini, a cute little bump could be seen, suggesting she is expecting.
Gisele looked radiant in a white and grey two piece on the beach during her family holiday to Costa Rica.
It was first reported back in May that she and her American football player husband Tom Brady were expecting their second child.
They are already parents to two-year-old Benjamin.
Speaking about his birth in December 2009, she told US Vogue: "It didn't hurt in the slightest. The whole time my mind was focused in each contraction on the thought 'my baby is closer to coming out.' It wasn't like 'this is so painful'. So I transformed that intense feeling into a hope of seeing him."
> IN PICS: PREGNANT CELEBS
