Catherine Giudici and Sean Lowe Credit: Paul Redmond/FilmMagic

Sean Lowe is on cloud nine! The former Bachelor is beyond thrilled to be expecting a baby with his wife, Catherine Giudici.

"Thank you to everyone for the kind words today!" Lowe, 32, tweeted on Tuesday, Dec. 8. "@clmgiudici and I are so excited!"

Just hours earlier, Lowe and Giudici, 29, announced that they are expecting their first child together by posting photos of Giudici's tummy.

"It's happening! I'm going to be a dad!" Lowe tweeted. Giudici added: "Hey baby."

Back in March, Giudici opened up about starting a family during an interview with Extra. "I think we’ll probably start trying maybe later in the summer or sometime soon, because I want a lot," she said at the time. "I want five kids."

The parents-to-be, who recently appeared on Marriage Boot Camp, got engaged during Lowe's Season 17 of The Bachelor in 2013. They married in Santa Barbara, Calif., in January 2014, which marked the franchise's first live TV wedding.

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