4/3/12 Update: Hilary Duff finally added an actual picture of her little one, after teasing everyone with a picture of his feet.  She tweeted, “Baby Luca, 2 weeks old.”

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Hilary Duff just posted up the first photo of baby boy Luca Cruz. “My favorite little feet,” she wrote.

“Wow I can’t believe I have a baby!” she also tweeted. “The most wonderful,sweet,adorable baby! thank you all for the messages and well wishes! love you all so much.”

Duff and her husband Mike Comrie welcomed Luca two weeks ago.  The first time parents  announced, “We are overjoyed and feel like the luckiest parents in the world.”