mirandaorlypreg.jpg Orlando Bloom and Miranda Kerr sure are sneaky! Not only did they recently tie the knot without anyone knowing, but a source tells Us Weekly that the lovebirds are expecting their first child together!

The source close to the Victoria's Secret stunner says, "She's definitely pregnant -- Miranda's thrilled. She's telling all her friends, mostly other models, about it."

A rep for the couple hasn't yet returned calls confirming the pregnancy, and while the insider says no official announcement will be made, "it will be obvious soon enough" given the nature of her work.

Miranda recently told an Australian newspaper, "I have always been very open about wanting to be a mother one day. And I've always thought Orlando would be a great dad!"