Kourtney Kardashian Welcomes Baby No. 4 — Her First Child With Travis Barker

It's official: Kourtney Kardashian is now a mom of four. Following speculation from fans that she had given birth when husband Travis Barker (along with other family members) was spotted outside Cedars-Sinai Hospital, we now have the confirmation we've been waiting for from the Kardashians star. Kourtney has welcomed a baby boy — her first child with Travis. Here's everything we know about her little one so far.

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Their baby boy is finally here!

According to People, Kourtney and Travis have welcomed their baby boy!

Although the couple haven't officially announced the news themselves just yet, a source told the magazine that their little boy, Rocky, has been born.

And this tracks with the news Friday that family members were seen heading to the hospital.

Kourtney's pregnancy hasn't been an easy one.

Kourtney and Travis shared their fertility journey on The Kardashians, though ultimately, they decided not to continue with the IVF treatments they started and eventually ended up conceiving the old-fashioned way. But the challenges still weren't over. In September, Kourtney revealed that she'd needed emergency fetal surgery to save her baby's life.

"I will be forever grateful to my incredible doctors for saving our baby’s life. I am eternally grateful to my husband who rushed to my side from tour to be with me in the hospital and take care of me afterwards, my rock. And to my mom, thank you for holding my hand through this," Kourtney shared in an Instagram post at the time.

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Her pregnancy has been well-documented.

Aside from sharing her journey on her family's reality show, Kourtney has been all about posting bump photos on social media after she made the big announcement over the summer that she was expecting.

We're going to miss seeing her show off her maternity style, but something tells us those baby photos are going to be way better!

Congrats, Mom and Dad!

Neither Kourtney nor Travis is new to the whole parenting thing — Kourtney is mom to kids Mason, Penelope, and Reign, while Travis is dad to kids Landon and Alabama — but this is still such an exciting time for their family. There's no doubt that baby Rocky has tons of cousins (and aunties) who are already lining up to snuggle him.