'The Hills' star Whitney Port welcomes her first child!

The 'Hills' alumni is growing!

Whitney Port and her hubby Tim Rosenman are officially new parents, welcoming their little one into the world on Thursday last week.

The former reality star gave birth to baby boy, who they've named Sonny Sanford Rosenman.

Posting on her Instagram page, she wrote: "Sorry I've been MIA for like a week! I lost my phone. Just kidding!! I made a human! Sonny Sanford Rosenman was born on 7/27/17!! 

"Everyone is so happy and healthy and we are home now. I'm going to try my very best to not be one of those mums whose feed is dominated by their baby but I can totally see how difficult it will be not to.

"I am beyond obsessed and in love and wish I could bottle this feeling for all of you out there. Check out the blog (link in bio) for more and welcome our little one to the world!! (sic)"

In the blog post on her website, the 32-year-old also shared the first photos of her gorgeous newborn.

Port is latest “Hills” star to welcome her first child.

Lauren Conrad, 31, also gave birth to son Liam James Tell in July.

And Heidi Montag and Spencer Pratt are expecting their first bundle of joy in October.