We officially can't keep up! Looks like Kourtney Kardashian felt left out after she found out her younger sisters Kim Kardashian, Khloé Kardashian, and Kylie Jenner were expecting because the KUWTK star is pregnant with baby No. 4! Two years after welcoming her youngest son, Kourt is ready to become a mom again.

"She was thrilled to learn she was expecting," a source told Life & Style exclusively. However, for now, Kourtney and her boyfriend of one year Younes Bendjima are only telling close family and friends. "She loves being part of a large family and having so many siblings," the insider added, "and she wants the same for Penelope, Mason, and Reign."

In a recent interview with Grazia magazine, the eldest of the Kardashian sisters, 38, hinted at her baby news when she excitedly proclaimed, “I’m pregnant!” However, according to the interviewer, the brunette beauty insisted she was joking after a long pause. In the past, Kourtney has made it very clear she wanted more kids — even after her split from longtime boyfriend Scott Disick. "I would have more. I could see myself with six kids," Kourtney told Cosmopolitan. "I just don't know what's in God's plan." She does know that Younes, 24, is the perfect dad-to-be.

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"She needs a man who will be both present and sober," the source explained. "With his charming personality and intelligence, Younes will make the perfect father." However, it doesn't look like Scott, 34, is happy about her new relationship. Life & Style previously reported that Scott was trying to ruin Kourt's relationship with the young model.

"Scott will do anything to sabotage Kourtney’s relationship, including showing up wherever Kourtney and Younes are hanging out together,” the source said. “He’s also been asking around, trying to get some dirt on Younes so he can bring it back to Kourt and persuade her to dump him." It doesn't seem Kourtney is too concerned about her ex after she recently made her romance with Younes Instagram official on a couple's vacation to Paris. Meanwhile, Scott is seemingly rebounding with his new 19-year-old girlfriend Sofia Richie

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