According to TMZ, Kardashian delivered the baby at around 4 a.m. Thursday at a hospital outside of Cleveland.
Throughout her pregnancy, the "Revenge Body" star stepped out in a number of glamorous maternity looks, like when she wore Jimmy Choo x Off-White Victoria Pumps paired with a slinky LBD at Thompson's birthday party last month.
The week of their daughter's birth has been filled with news of Tristan allegedly cheating on Khloe while she's been pregnant, including videos believed to show him kissing multiple different women. Her baby daddy Tristan Thompson was also there. Kardashian responded to fan's question about whether she would "follow tradition" and give her daughter a K-lettered name.
The Kardashians did not give Tristan Thompson a warm reception in the delivery room! "Of course, I'm already packed up and have been for a while, LOL", she wrote.
The duo announced they were expecting their first child together via an Instagram post on December 20. News, which broadcasts the Kardashian family's slate of reality shows. Thompson is seen in the video making out with two women and allowing the women to grope him. "He wants to have five or six kids with me and that's lovely".
Kardashian becomes the third member of her family to add a baby in 2018. "Everyone is focused on what's best for their baby girl".
Thompson is also dad to 16-month-old son Prince Oliver from a previous relationship.
Earlier this week, the Los Angeles OB/GYN who assisted Kylie Jenner's pregnancy and labor posted a photo while visiting a hospital, sparking speculation that Kardashian was preparing to give birth soon.