Khloe Kardashian gave birth to a baby girl, her first child, early Thursday in a hospital outside Cleveland, TMZ reported Thursday morning.
The baby's father is Kardashian's boyfriend, Cleveland Cavaliers player Tristan Thompson, who reportedly was there for the birth. Neither family has confirmed the birth yet.
Two of Kardashian's sisters — Kim and Kourtney — her mother, Kris Jenner, and her best friend were also with her, TMZ reported.
The baby arrived just hours after Thompson was booed at a home game in Quicken Loans Arena against the New York Knicks after reports broke in recent days that he has cheated on Kardashian several times.
Earlier this week, photos and videos surfaced of Thompson allegedly getting close to an unidentified woman at a New York City lounge over the weekend.
TMZ also posted footage from October, when Kardashian was three months pregnant, that allegedly showed Thompson kissing one woman while another woman groped him at a hookah lounge outside of Washington D.C.
Kardashian — whose efforts to have a baby have been chronicled on the family's reality show, "Keeping Up With the Kardashians" — announced she was pregnant in December with a photo on her Instagram account showing Thompson cradling her belly.
"My greatest dream realized," she wrote. "We are having a baby!"
She has always been one of the most popular of the Kardashian sisters with fans. But given the cheating scandal, Thompson won't be winning any Father of the Year awards soon.
After the cheating scandal broke, Kardashian posted a photo of herself and Thompson kissing. "We are ready whenever you are little mama," she wrote.
Kardashian, 33, wants to give Thompson the benefit of the doubt, a source told People.
Everyone wanted to believe "that he was set up, that the girl never even went into his room, that you can’t tell what’s really happening behind that hoodie in the club footage, that the girl leaned in to whisper something but knew her pal was filming and so she made it seem as much as possible like a kiss," the source said.
"Khloe and frankly everyone else wanted to believe that maybe, somehow, that was the case."
Thompson, 27, and Kardashian have been dating for more than a year.
She was married to former NBA player Lamar Odom from 2009 to 2016.