The 33-year-old stepped out in New York City over the weekend wearing a huge sparkler on her ring finger.
While they sadly didn't arrive with a trio of dragons, Game of Thrones fans Khloe Kardashian and Tristan Thompson chose to channel their inner Daenerys Targaryen and Khal Drogo for Halloween this year. "On top of it, to be in such a great place in her personal life is incredible".
The couple were dressed as characters from Game Of Thrones, and Khloe was Daenerys Targaryen - aka the "mother of dragons", while Tristan was dressed up as Khal Drogo.
Many people think the "Keeping Up With the Kardashians" star confirmed the reports of her pregnancy when she posted a video of Thompson, 26, in his costume and captioned it, "That's Daddy".
At one point Khloe and Tristan - both sporting long wigs - kissed passionately for their social media fans.More news: One dead at University of Utah shooting, police search for suspect
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They won the best couple's costume award. "She is pregnant that's why she is saying daddy", someone wrote.
'She's hungrier than ever, ' said a friend, adding Khloe 'opts for smaller meals throughout the day'.
In September, multiple outlets reported that Kardashian was expecting her first child, a baby boy, with the basketball star, who she's been dating for about a year.
'He's really nice to her. "Tristan is a very good father and he absolutely wants other children..."
'Marriage is definitely in the cards.
Staying in-shape: The reality TV diva is also sticking to her fitness regimen too.