We already knew Alessandra Ambrosio was expecting her second child with fiance Jamie Mazur, and now here's our first peek at the supermodel's baby bump!

Alessandra and daughter Anja posed for this cute snapshot in Florianopolis, Brazil, and the 30-year-old stunner wrote on Facebook, "Anja, Jamie and I are overjoyed and extremely appreciative of all the wonderful wishes we've received!! 2011 has been a year filled with incredible gifts and this is the ultimate blessing!! Anja has filled our lives with love and we can't wait to welcome the new baby into the family this spring!"

Alessandra, who is four months along, recently revealed that she wasn't sure if she would be able to star in the Victoria's Secret show back in November. "When I first found out I was pregnant I thought, 'Oh my gosh I don't think I'm going to be able to walk on the show,'" she told Us Weekly. "I didn't tell anybody so no one knew at the show that I was pregnant. A week before, I told my booker I don't think I'm going to be able to fit into the clothes because I gained a few pounds already, but we were just quiet."