During an appearance on NBC's Today this morning (February 15), Khloe was asked about a preview trailer for the new season of her E! reality show Khloe & Lamar which shows her and Odom discussing Kourtney's second pregnancy.
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In the preview Khloe asks Odom if he is jealous that Kourtney and Disick are extending their family, prompting him to say: "Yeah, they get to have another baby and I don't."
"It's always on the plan for Lamar and I to start a family, but when I heard that [comment] it really broke my heart because I didn't think he felt that way," said Khloe. "We definitely want kids but we really are just like when it happens it happens."
Watch a trailer for Khloe & Lamar below (US users only):
Khloe added: "There are so many rumours out there that I'm doing all these fertility treatments. Yesterday I actually got sent all these bouquets of flowers - which was so sweet - to my condo in Dallas and then I read the card and it's from three different fertility treatments saying, 'I hope you try us out!'"
The star dismissed rumours she was seeking fertility treatments last month, saying that she and Odom are currently trying to get pregnant "the old-fashioned way".
Khloe moved to Texas with Odom when he was traded from the Los Angeles Lakers to the Dallas Mavericks last year.
"I love Texas," she said. 'We've had such a warm, overwhelmingly genuine welcome with open arms, which is amazing. I was nervous about it. I didn't want Lamar to be traded and then a team to be like, 'Oh God, his wife is coming with all of her baggage and the cameras', but Mark Cuban is a phenomenal owner and embraces us with open arms."
The new season of Khloe & Lamar begins Sunday, February 19 on E!
Watch Khloe talking on Today below: