The Bachelor couple Arie Luyendyk Jr. and Lauren Burnham have revealed the sex of their unborn child.

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"IT'S A GIRL!!!" Arie wrote in an Instagram posting.

"Tickled PINK... We're having a little girl!!" Lauren added in an Instagram posting of her own.

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According to The Bachelor couple, who had already previously revealed the baby is due in June, they had hoping for a girl immediately after they discovered Lauren was pregnant.

"I think, to be honest, in the beginning we were both hoping that we were having a girl," Lauren told Us Weekly.

However, the couple initially thought they were expecting a baby boy -- and even decided what the boy's name would be -- because an online testing service returned an erroneous result.

"We actually did the early gender test online, so we took our test at 10 weeks," Lauren told Us.

"We got the results back from that, and it was that we were having a boy."

Compounding the error further, the couple then filmed a "gender reveal" segment for The Bachelor's upcoming Season 23 premiere in which they revealed they were having a boy.

But Lauren's doctor still encouraged her to do an ultrasound when her pregnancy was 15 weeks along -- and the ultrasound then revealed the online testing service had been wrong.

"I was very quiet. The ultrasound tech says, 'Well. I'm about 98 percent.' So I still wasn't convinced after the first time we saw it," Arie told Us.

"We went back to the doctor, went back a few other times and just went back for our anatomy scan. It's definitely a girl!"
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The couple, who are getting married in Hawaii on January 12, then had to call The Bachelor producers and let them know the prior gender results had been incorrect.

"The phone call back to the producers was hilarious because they're like, 'Arie, you're always making things difficult!,'" Arie told Us, eluding to how Arie's The Bachelor season ended with Arie rejecting Lauren and proposing to Becca Kufrin only to later tell producers he wanted to dump Becca and ask Lauren for a second chance.

"We all had a big laugh about it."

Lauren told Us she's feeling much more confident about becoming a first-time mother now that she'll be parenting a baby girl instead of a boy.

"I was really nervous to be a boy mom because I just don't know that I can relate as well, being a woman relating to a little boy," she said.

"I have a little brother, and he's so sweet and I love him to death, but sometimes I don't really understand why he acts that way he does. I'm feeling a lot more confident in being able to be a girl mom first!"

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Arie said he's also "very excited."

"I won't have to worry about putting that little boy into a race car anytime soon," he told Us.

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