Kourtney Kardashian and Scott Disick welcomed their baby boy on Sunday, Huffington Post reported.

The third child of Kourtney Kardashian and Scott Disick was born on Sunday. Their second child Penelope is two years old while Mason turned five n the same day.

A source shared how the family feels about the new baby. "The family is freaking out with joy. What an amazing coincidence," the insider said, according to E News.

A few days ago, Kardashian shared the joys of being pregnant for the third time.

"I love being pregnant in general. This time I'm more tired than I was the other times. I think it's because I'm always running around and working on different things. But I feel comfortable with how I look and feel. I find a pregnant body to be beautiful and an incredible reminder of what a woman's body is made to do," Kardashian said, according to Fit Pregnancy.

The fashion mogul has shared how she plans to raise their third child. "I'm not getting a baby nurse. I take two months off and no one is allowed to bother me or talk to me about anything work-related-or maybe three months this time," Kardashian added.

The mom of three is well praised by her sisters when it comes to parenting style. Kim Kardashian shared about their differences in taking care of their children.

"Watching my sister Kourtney, I do learn a lot, but I have my own parenting style. We have our own styles and ways of how we do it and we respect each other's ways and we just learn a lot from each other. I'm really fun and playful but I'm more strict on nap times and sleeping in her own crib, where Kourtney does more of an attached parent style where her kids sleep in her bed with her," Kim revealed.

Meanwhile, viewers can get more details of the new Kardashian baby by watching Kourtney & Khloé Take the Hamptons every Sunday at 9 p.m. on E!