He’s here! Kim Richards’ daughter Brooke Wiederhorn gave birth to a baby boy on Wednesday, September 28, Entertainment Tonight reports.

This is the first child for Wiederhorn, 30 — whose father is Richards’ late ex-husband, Monty Brinson — and also the first grandchild for the 52-year-old Real Housewives of Beverly Hills alum.

Wiederhorn shared a photo of her adorable son in an Instagram post on Friday, September 30. "Our baby boy, Hucksley Andrew Wiederhorn," she captioned the image of her newborn swaddled in his hospital blankets. "We are SO in love."

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The new mom took to Instagram back in March to share the thrilling news that she and husband Thayer Wiederhorn, who she wed in August 2014, were expecting a little bundle of joy.

Happy Easter🐰💐! Can't wait to meet our baby BOY! 💙👶🏼🐣

A photo posted by Brooke Wiederhorn (@brookewiederhorn) on

“Happy Easter,” the California resident wrote alongside a photo of a basket full of blue baby toys. “Can’t wait to meet our baby BOY!”

Shortly after Brooke made the announcement, Richards posted a sweet message in honor of her expanding family.

"A mother's joy begins when new life is moving around inside … and those playful kicks that remind her she's never alone …" she wrote on Instagram. "NANA waits for those moments too."

Richards — who checked into rehab for the fourth time in 2015 for her addiction to alcohol — opened up to Entertainment Tonight last year about wanting to get healthy so she could eventually be the best grandparent possible.

"I will be here to be a grandma," she tearfully told ET in July 2015. "I will be here to watch my kids be married. I will do that because I am healthy, I am strong and I am going to be here for all of that and my kids will trust me to watch my grandchildren and be there."

Richards is also mom of Whitney Davis, 26, and Chad Davis, 25 — who she shares with ex-husband Gregg Davis — and Kimberly Jackson, 21, from a previous relationship with John Jackson.

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