Jessie James Decker and husband Eric welcome baby no. 3: Pic!

Jessie James Decker is officially a mama of three!

The 29-year-old singer announced on Monday that she gave birth to her son, Forrest Bradley Decker, on Saturday. Jessie and her husband, NFL star Eric Decker, are already parents to 4-year-old daughter Vivianne and 2-year-old son Eric.

"Forrest Bradley Decker born March 31st weighing 9lbs," she tweeted alongside a photo of herself holding Forrest on a hospital bed. "We are so in love 🙏🏼❤️."

ET spoke with Jessie last October, when she talked about how Vivianne and Eric have reacted to getting a younger sibling.

"Little Eric still doesn't get it," she said. "I keep saying, 'There's a baby in mommy's tummy,' but he's just not there yet. And Vivianne is pulling my shirt up constantly and kissing my tummy, saying, 'I love you,' and calling [the baby] by the name. She is a very nurturing little girl. She's going to be the perfect older sister."

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Jessie James Decker at the 2017 CMA Awards
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Jessie James Decker at the 2017 CMA Awards
NASHVILLE, TN - NOVEMBER 08: Singer Jessie James Decker attends the 51st annual CMA Awards at the Bridgestone Arena on November 8, 2017 in Nashville, Tennessee. (Photo by John Shearer/WireImage)
NASHVILLE, TN - NOVEMBER 08: Singer Jessie James Decker attends the 51st annual CMA Awards at the Bridgestone Arena on November 8, 2017 in Nashville, Tennessee. (Photo by John Shearer/WireImage)
NASHVILLE, TN - NOVEMBER 08: Singer Jessie James Decker attends the 51st annual CMA Awards at the Bridgestone Arena on November 8, 2017 in Nashville, Tennessee. (Photo by John Shearer/WireImage)
NASHVILLE, TN - NOVEMBER 08: Singer Jessie James Decker attends the 51st annual CMA Awards at the Bridgestone Arena on November 8, 2017 in Nashville, Tennessee. (Photo by John Shearer/WireImage)
NASHVILLE, TN - NOVEMBER 08: Singer Jessie James Decker attends the 51st annual CMA Awards at the Bridgestone Arena on November 8, 2017 in Nashville, Tennessee. (Photo by John Shearer/WireImage)
NASHVILLE, TN - NOVEMBER 08: Singer Jessie James Decker attends the 51st annual CMA Awards at the Bridgestone Arena on November 8, 2017 in Nashville, Tennessee. (Photo by John Shearer/WireImage)
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She also said this will be the last baby for the couple.

"It completed the family, and now he'll get fixed," she said of her husband with a laugh.

SEE ALSO: These self-care products will keep any woman calm through pregnancy

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