Kylie Jenner Found Out She Was Pregnant With Stormi Webster While Filming Life of Kylie

Kylie Jenner's pregnancy wasn't just a secret to the public — it was even kept hidden from producers close to the family.

During an interview with Variety, Keeping Up With the Kardashians executive producer Farnaz Farjam opened up about how she found out about Jenner's pregnancy with daughter Stormi Webster, 3. The producer said she has been close with the family since their show first aired in 2007. Yet, when Jenner found out she was pregnant while filming her spinoff show Life of Kylie, she allegedly kept the news hidden from producers.

Kylie Jenner/Instagram

"We didn't know. She hid it from the cameras," Farjam revealed. In fact, even when Farjam was told by a family member, she didn't believe the news. She said the family occasionally revealed "test" information "just to find out who was leaking," information to the press. And she thought this was just one of those tests.

"One of the family members told me she was pregnant but that she was keeping it a secret - and I thought they were trying to set me up and trying to find out who the leak was," she explained. "I was like, 'This person is lying to me and just trying to see!'"

Farjam revealed she officially learned the truth after seeing Life of Kylie footage of the moment Jenner found out she and boyfriend Travis Scott were expecting a child. Life of Kylie aired for one season on E! in 2017. Jenner and Scott welcomed Webster in Feb. 2018.

RELATED: Travis Scott and Kylie Jenner Made a Rare Red Carpet Appearance and Are "Fully Back On"

Last night, Keeping Up with the Kardashians aired the first part of their reunion, The Final Curtain Part 1, where Andy Cohen asked the hard hitting questions. Jenner opened up about the reason she first decided to start getting lip fillers.

"My love for makeup started with my insecurity with my lips. And I didn't ever think about it until I had one of my first kisses," she revealed. "A guy said to me, 'Oh, my God, you're such a good kisser, but you have such small lips.'"

She continued, "I took that really hard. Just when a guy you like says that, I don't know, it just really affected me.  I just didn't feel desirable or pretty. I really wanted bigger lips. I would over line my lips with lip liner just to create the illusion of bigger lips. And then finally I was like 'this lip liner isn't doing it,' and I ended up getting my lips done."