Big Brother houseguest Christmas Abbott has welcomed her first child into the world.

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Christmas, who competed on Big Brother's nineteenth season, gave birth to a son whom she named Loyal Atticus Abbott late Monday night, Entertainment Tonight reported.

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Loyal was reportedly born at 11:28PM in South Carolina and weighed at eight pounds and 15 ounces. The newborn also measured 22.5 inches long.

Christmas and her son are doing well, according to ET, and she opened up about the meaning behind her baby's unique name.

"My family has a history of strong and unique names so I wanted to follow suit," explained the 36-year-old fitness enthusiast.

"I chose his first name Loyal because I believe it will guide him to have strong integrity through his life. It's a reminder that family comes first, which is why it is his first name."

As far as having Atticus as a middle name, Christmas revealed, "I chose his second name Atticus from the Greek educator and philosopher to embrace balance and fairness through understanding."

"Neither is a family name," she admitted, "but I hope he will embrace his name as his own and follow the greatness he can bring to this world through love, understanding, and fair action."

Christmas apparently came up with her son's name at the very last minute.

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"I had a short list of names and actually had a different second name picked that I felt VERY confident in it up until the moment he was born -- to a point of certainty. However, when I sat with him after the chaos and reflected on our journey together to this point and who he could become in his life, it was switched," Christmas shared with ET.

"The name, which was not my first choice until this moment, stayed stuck on my tongue as I watched him in this new world. My heart sang and I knew he was special and needed a strong, unique name to remind him of his what he can contribute to this world."

The baby's father is Benjamin Bunn, a CrossFit affiliate owner who calls himself "Coach Bunny," whom Christmas had been dating at the time of her March pregnancy announcement.

However, Benjamin and Christmas reportedly broke up a few months after she discovered she was expecting their child.

As Big Brother fans probably recall, Christmas had a fun and flirty relationship with Paul Abrahamian on Season 19 of the show in 2017.

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Christmas admitted to Us Weekly after the season aired that she could see herself dating Paul and had feelings for him, but a romance outside of the house never came to fruition, possibly due to their 11-year age gap.

Christmas was previously engaged to Geoff Kercher.

She announced their engagement in October 2016 on Instagram, and according to the former couple's website on The Knot, they originally set a wedding date for September 3, 2017 in Raleigh, NC.

Christmas finished her Big Brother stint in third place behind runner-up Paul and the winner Josh Martinez.

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She found her eviction to be "really hard and really painful." As a juror, Christmas had voted for Paul to win the game.