Maci Bookout may be expecting a baby in two months, but she's not letting that put a damper on her wedding plans.

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After getting engaged to Taylor McKinney in January, the Teen Mom OG star began planning for an October wedding in Tennessee, and while she has since discovered she will welcome her third child at the end of May, she and McKinney are still going through with their original plans.

"What an experience! The @rikidalal_bridal show was amazing. #lovingLondon," Bookout wrote, along with a photo of herself and her mother at a bridal event in London.

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During an interview with Us Weekly, Bookout revealed she learned of her pregnancy just two days after McKinney proposed.

"I laughed at [the doctor]!" Bookout recalled. "I mean, she's the doctor that delivered Jayde, so I was like, 'Ha ha, that's a funny joke — but it's not really that funny!' And she was like, 'No, seriously!' And I was like, 'Oh, OK — well, give me 10 minutes to not freak out ... You're wrong. You've got the wrong results, you mixed them up.' But no, she was serious!"

"Everyone is shocked," she continued. "I mean, even we were completely speechless, and every time I shared the news with someone, I said, 'OK, are you sitting down?' And then I said, 'Feel free to say 'holy s--t' or congratulations because both are fine.' Because that's pretty much how I've been the whole time!"