Tristan, most of all, Thank you for making me a MOMMY!!!
You have made this experience even more magical than I could have envisioned!
Khloe's mum Kris Jenner confirmed the news when she told Entertainment Tonight: "I'm over the moon for her." Tristan Thompson is a basketball player for the Cleveland Cavaliers.
He started dating Khloe back in August 2016 after she ended her fraught relationship with ex-husband Lamar Odom. On September 27, 2009, Khloe wed NBA basketball player Lamar Odom after just one month of meeting him at a party.
Khloe's estimated fortune is around £18.5million. Over the past two years, Khloe has dropped a massive 40lbs from her intensive exercise and careful diet.
She said she was determined to transform her body after years of being branded the "chubby one" in her family.
Born on June 27, 1984, Khloe Kardashian is a 33-year-old American reality star, socialite, model, businesswoman and entrepreneur.
Here is all you need to know about the superstar, who is pregnant with her first child.
Khloe has also starred in spin-off shows Kourtney And Khloe Take Miami and Khloe & Lamar - plus her more recent talk show Kocktails With Khloe that got cancelled in 2016.
Nowadays she is regularly photographed for glamorous shoots, and interviewed about her amazing physical transformation, though she's also brought out her own line of jeans for "curvy" women.
She has even fronted a show called Revenge Body with Khloe Kardashian - which has just been renewed for a second season.
After months of speculation that Khloe Kardashian, the youngest of the Kardashian sisters, and Kylie Jenner, the youngest of the Jenner sisters, are pregnant, one of them finally put the rumors to bed, just in time for the holidays.