'NCIS' Star Daniela Ruah Welcomes Baby Girl

09/07/2016 07:16 pm EDT

The NCIS: Los Angeles family just got even bigger! Daniela Ruah and husband David Olsen welcomed their daughter Sierra Esther on Labor Day.

The actress announced the happy news on Instagram, alongside a sweet family photo of the new parents with their two-and-a-half-year-old son River Isaac and the new baby.

"Apparently she thought Labor Day weekend meant LABOR day weekend… Look who showed up three weeks early! On Sept. 4th we welcomed little Miss Sierra Esther Ruah Olsen," she wrote.

"She entered the world in her own way — breeched! I was a good candidate to deliver her naturally so I needed to find a doctor in L.A. who would know how to do it," she revealed. "Fortunately I found one of the few… Healthy & happy mommy & baby walked out of the hospital 24hrs later. I had an OB and doula assisted birth at Cedars-Sinai, and the #love and #support of my wonderful #hubby This photo is the perfect representation of everything I've ever wanted."

The NCIS: LA family welcomed another baby girl earlier this summer. David Olsen's brother Eric Christian Olsen, who is Ruah's on-air love interest, welcomed little girl Esmé Olivia on Aug. 9 with Sarah Wright Olsen.

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