Keeping Up With The Kardashians is known for its drama-infused episodes, but things get especially serious in the upcoming episode of the reality series. A teaser reveals that Khloe Kardashian's pregnancy "hits some complications" in its upcoming episode.

"Literally, I like can't walk," says Khloe to her sisters, Kim and Kourtney, in the clip before Kourtney urges her to call a doctor. Earlier in the 15-second preview, viewers see Khloe at the doctor's office.

Luckily, we know that Khloe and the baby are all good as she's been seen with her baby bump on Instagram with her man and father of her baby, Cleveland Cavaliers' Tristan Thompson.

She's pretty smitten with him, too. Back on Valentine's Day, Khloe revealed what made her realize that Thompson was "the one."

"It's really easy to fall in love with someone during a honeymoon phase when you haven't yet discussed the logistics of life," wrote the third oldest Kardashian sister on her app. "But you have to talk about the real things if you want a real/long-lasting relationship." She later added that she's "never felt so comfortable or so safe with someone."

Khloe will be the second from the Kardashian-Jenner crew to give birth this year after Kylie Jenner delivered her first child earlier this month.