Shawniece, 30, reportedly gave birth on Monday, August 20, which was three weeks early considering her due date was in September.
"Seeing my daughter and holding her for the first time was magical. There are no words that can describe that feeling," Shawniece said.
"I remember, before she was born, thinking about her features and if she'd have hair. I was born bald. So the first thing my mama said as I pushed her out was, 'Look at her hair.' What a moment we all had in the delivery room. I'm just so honored to be her mom."
Shawniece was only in labor for five hours when her newborn arrived at 7:47AM, weighing five pounds and 15 ounces, according to the magazine. Laura also measured 17.75 inches long.
The couple named their baby in honor of Jephte's mother Laura and Shawniece's mother Denise.
Jephte added, "Seeing my daughter for the first time was so overwhelming. Watching Shawniece push her out drew me to tears. Watching her birth has to be the best moment of my young life. It's incredible to think she's all ours."
Shawniece and Jephte exchanged vows as complete strangers. They didn't even know each other's names going into the eight-week Married at First Sight experiment, but after many ups and downs, they decided to stay together on "Decision Day."
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Shawniece and Jephte's joys and struggles of preparing for first-time parenthood will be documented on a new spinoff series titled Married at First Sight: Happily Ever After, which premieres Tuesday, October 30 at 10PM ET/PT on Lifetime.
The show will also chronicle the stories of two other couples from seasons past, including Season 5 cast members Ashley Petta and husband Anthony D'Amico.