Khloe Kardashian Is Pregnant!!!

A third Kardashian-Jenner baby is on the way.

Khloe Kardashian, 33, and her NBA boyfriend Tristan Thompson, 26, are expecting their first child together, as confirmed to PEOPLE by multiple sources.

The two lovebirds have been dating since September 2016.

Khloe Kardashian. Tristan Thompson

This news comes days after sources confirmed that Kylie Jenner is expecting a baby girl with her boyfriend Travis Scott, and is due in February.

Kim Kardashian West and her husband Kanye West are also expecting their third child sometime around early January after hiring a surrogate to help them expand their family.

This baby will be the first child for Khloé and a second for Thompson who welcomed a son named Prince Oliver with his ex-girlfriend Jordan Craig in December 2016.

A source tells PEOPLE:

“Yes, Khloe and Tristan are expecting and they are absolutely thrilled. This isn’t something they were in a rush to announce to the whole world, and it’s only been in just the past week or so that they’ve felt comfortable telling most of their inner circle. Things were complicated a bit by Kylie’s announcement as they don’t want to be seen as intruding on that moment for her but it is now reaching a point where Khloe doesn’t want to be openly lying to people, and just staying quiet isn’t going to work anymore.”

“This is something Khloe has wanted for years and years and yet it’s more than that: she didn’t want it unless she was in the right relationship for it. She never let it happen with Lamar, intentionally, and she never considered it with James or French or anyone else she has seen. But this is such a wonderful moment for her: not only is she going to be a mother, she is going to be raising a child with a man she truly loves. Everyone is over the moon for them both.”

MALIBU, CA – SEPTEMBER 01: Kim Kardashian West, Kylie Jenner, Khloe Kardashian host a dinner and preview of their new apps launching soon at Nobu Malibu on September 1, 2015 in Malibu, California. (Photo by Charley Gallay/Getty Images for Kardashian/Jenner Apps)

According to another insider close to the family, Kylie and Khloé are due around the same time. “They are looking at it like a unifying experience for them as sisters,” says the insider. “Getting pregnant at the same time was totally unplanned but they are really happy about it.”

This news comes months after Khloe admitted on the Keeping Up With The Kardashians season 13 finale — following news that her uterus looked normal after an initial fertility scare leading her to cease taking birth control — that she and her boyfriend have “definitely [talked] about starting a family” together.

Khloe had visited a fertility assistant to see if she could serve as a potential surrogate for her sister Kim. She said:

“He wants to have about five or six kids with me and that’s lovely. We could start at one and we could grow from there. But now knowing I’m not on birth control is scary. It’s like a really big step.”