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Jessa Seewald Instagram

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Jessa Duggar is counting down the days until she meets her own baby, but until then, she's got a few to practice with.

The TLC reality star, who on July 23 revealed that she was 26 weeks along in her pregnancy, recently welcomed another bundle of joy into her already-gigantic family—yet another little one to help her get a taste of what motherhood is going to be like.

The 22-year-old posted a photo of herself cradling newborn Meredith Grace Duggar, Josh and Anna Duggar's fourth child, writing, "Loving on my little niece!

Verdict: She looks like a natural. Even little Meredith seems stunned by her auntie's mommy skills.

Josh and Anny recently enjoyed a peaceful moment with newborn Meredith, who was born on July 19. 

A photo of the proud parents and their baby girl was uploaded to the Duggar Official Facebook Page on Wednesday with a caption by grandparents Jim Bob and Michelle Duggar: "Picture of our sweetest new granddaughter Meredith Grace with her mommy and daddy."

Meredith joined sister Mackynzie, 5, and brothers Michael, 4, and Marcus, 2, in the family fold.