Kourtney Kardashian Kourtney Kardashian at the 2014 Elton John AIDS Foundation Oscar Party in West Hollywood, California March 2. The E! reality star is due to give birth to her third child later this month. Photo: Reuters

Kourtney Kardashian is due to welcome her third child with her longtime love, Scott Disick, later this month, but fans of the “Keeping Up With the Kardashians" star won’t have to wait until her due date to find out what she’s having. A promo for next Sunday’s episode of E!’s “Kourtney & Khloe Take the Hamptons” teases that it will reveal whether the 35-year-old reality star is having a boy or a girl.

“So I heard,” Kourtney’s co-star and sister Khloe Kardashian says in the promo for episode 6 released by Us Weekly. 

“We’re having a [BLEEP],” Disick, 31, responds.

Kourtney and Scott’s oldest child Mason, 4, appears to have been included in the gender reveal. It’s unclear whether their 2-year-old daughter Penelope had any involvement in the big announcement.

“Mason ran in here with the [BLEEP] stick,” Kourtney says. “There was a red star or a blue star.”

“That’s so cute!” Khloe says.

Not only did Kourtney and Scott include their son in the reveal, it appears other members of the Kardashian family were also there to discover the sex of the child. “Kourtney and Scott are having a boy or a girl,” Kim Kardashian teases in the promo.

So is Kourtney having a boy or a girl? In October, Us Weekly reported that Kourtney is expecting another daughter. InTouch Weekly shared similar findings back in September. “Kourtney is so thrilled; she wanted a girl from the very start,” a “friend” of the reality star said.

Contradictory to the majority of reports, HollywoodLife reported in June that Kourtney is going to have another son come the end of this calendar year. “It’s still looking like Scott & Kourtney are having a boy,” a source told the site. It is important to note that their report came just one week after Kourtney confirmed the pregnancy on an episode of the Kardashian family's main E! series, "Keeping up with the Kardashians."

Kourtney’s gender reveal isn’t the only thing going down on Sunday’s new installment of “Kourtney & Khloe Take the Hamptons.” A second promo for episode 6 shows that a feud between Khloe and Scott will also be a featured storyline. So why are the usually friendly twosome fighting? It appears tensions will rise when Scott fails to show up to Khloe’s boyfriend French Montana’s music video shoot.

“I’m supposed to be there. I didn’t really want to let Khloe down, but I’m definitely not going to be going,” Scott says.

“All you do is make up excuse after excuse! So f---ing rude!” Khloe yells.

"Kourtney & Khloe Take the Hamptons" airs Sunday at 9 p.m. EST on E! What do you think Kourtney is having? Tell us your thoughts in the comments section below!