Thomas Rhett and his wife Lauren will soon have two daughters. In a recent interview, Rhett's father, songwriter Rhett Akins, shared that not only is the couple's biological daughter a girl, but the child they're adopting from Africa will be a girl as well.

“My family’s all boys, so in our family, everybody’s first name is either Thomas, John or James," Akins tells Sam Alex from Taste of Country Nights. "And if you go all the way back to, like, 1801, every single Akins in line is a John, Thomas or James. And now they’re having two girls."

Rhett and his wife shared the news about their biological child with their families through a Christmas present: a photo of the child that they're adopting, wearing a "Big Sister" T-shirt. Akins, though, admits that he didn't quite understand the photo at first.

"I'm looking at the picture, and I go, ‘Oh, that’s cool, that’s a cool pic.’ And they go, ‘No, like, look -- look at the picture! ... Look at the shirt!’" he recalls. "So I look closer, and it says ‘Big Sister,’ and I was like 'Big Sister?' I still didn’t get it!”

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Rhett and his wife shared the big news that they’re expecting and adopting in mid-February. The couple, supporters of the charity 147 Million Orphans, began the adoption process in 2016, before finding out that Lauren was pregnant in December.

“I was in complete and utter shock!” Rhett recalls of the moment. “No one is ever prepared for something like that. It is almost like we suddenly had twins.”

Lauren adds that she and her husband “feel more than blessed,” especially because they tried for a while to get pregnant, without any luck.

“It was a good chunk of time, and our family is extremely fertile, so I was expecting it to happen easily. I was like, ‘Maybe this is the Lord’s way of telling me adoption is what he wants me to do.’ And I was okay with that,” Lauren explains. “It’s funny to me how we tried so hard, and then we didn’t try at all and it happened! We feel like it’s all part of the plan.”

Rhett and his wife have known each other since the first grade, and been married since 2012. Rhett is currently headlining his Home Team Tour — and he’s already preparing for life on the road with two children: “I took a whole row of bunks out of my bus and got a baby crib put in there,” he reveals.

“I think the way it all worked out, both of us have such a peace about this whole process, that it’s so right,” Lauren says. “We could not be happier. We feel like 2017 is going to be our big year.”

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