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Fergie is going to be a mommy.

The singer announced today that she is expecting her first child with husband Josh Duhamel.

"Josh & Me & BABY makes three!!! #mylovelybabybump," Fergie tweeted along with superimposed childhood photos of the couple. A representative for Fergie confirmed the news to ABCNews.com.

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Fergie, 37, and Duhamel, 40, wed in 2009. They revealed to Oprah Winfrey last October that they want two children.

"We negotiated that early on. He told me he wanted five and I said I'm not going any higher than two," Fergie said.

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