Christina El Moussa pregnant with baby No. 3 after wedding to Ant Anstead

Christina El Moussa's family is getting a little bigger.

The HGTV star, 35, and her new husband, Ant Anstead, 40, announced Friday via social media that they are expecting a baby this fall.

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“@ant_anstead and I are so excited to announce #babyansteadthis link opens in a new tab coming this September!! The kids are all so excited to meet their new sibling ♥️” the mom-of-two (already) wrote alongside a photo of a sonogram.

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“#5 #Gonnaneedabiggercarthis link opens in a new tab! 🚌 😂,” she joked.

El Moussa shares son Brayden, 3½, and daughter Taylor, 8, with her ex-husband and "Flip or Flop" co-star Tarek El Moussa, while Anstead also has two children from his previous marriage: son Archie, 12, and daughter Amelie, 15.

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"And then...... there were FIVE!!!," the British TV personality wrote on his post, "(Well .... four and a half! Will be Five in September)!!"

The couple surprised fans when they secretly got married in December 2018 in Newport Beach, California after starting to date in November 2017. Before meeting Anstead, El Moussa dated her contractor, Gary Anderson, NHL star Nate Thompson, and businessman Doug Spedding.

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Even though the El Moussas split in 2016, they continue to work together and have worked hard at remaining friends for their kids.

“It’s important when you’re co-parenting to make sure that you’re on the same page,” the interior designer told Us Weekly in June 2018. “We have a schedule where we make sure that if one of us has to travel, that the other picks up for the other one. And we just make sure that whatever’s best for the kids is what we’re going to do.”

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She added, “[I hope Tarek finds] someone who treats my kids very well, just like Ant treats my kids.”

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