Oh, baby! Khloé Kardashian took to Snapchat on Monday, Feb. 19, to share a new photo of her baby bump. The pregnant reality star, 33 — who is expecting her first child with boyfriend Tristan Thompson — posted the pic as rumors swirl that the NBA player, 26, cheated on her during a recent night out at the club. Check out KoKo’s pic in the video above!

Khloé’s sweet snap comes just days after it was reported that Tristan was spotted flirting with a mystery woman at a party on Friday, Feb. 16. In video footage exclusively obtained by In Touch, the athlete cozies up to a female club-goer. A witness explained Tristan’s inappropriate interaction to the magazine.

The woman "placed her hand on his hips. She was rubbing up and down while she was whispering to him. He never fully put his arm around her, however, they were standing really close at times," said the insider. "So close that when he would put his hand down by his side, his hands would lightly graze her backside."

tristan thompson mystery woman
In Touch

Though he initially brushed off the the attention, Tristan seemed to loosen up later in the night. "At first he seemed really aware and paranoid," said the source. "He was looking around but trying to play it cool. Closer to the end of the night he started smiling and bobbing to the music."

Tristan’s eyebrow-raising behavior is particular shocking given the fact that he and Khloé just celebrated Valentine’s Day together. In a touching Instagram post, the Good American designer gushed over her man. "'When a woman is loved correctly, she becomes ten times the woman she was before,'" she captioned a photo of Tristan caressing her growing belly. "Thank you my love."