Lauren confirmed the news in the most 'Lauren Conrad' way possible - with a sweet Instagram post of a needle point of her new family.
"He's here! We're so excited to welcome Liam James Tell into the world!" she wrote.
The couple have also humorously revealed their dogs’ reaction, “Chloe and Fitz aren’t so sure.”
Born weighing just under 3 kilos, Liam is the first child for the happy couple.
Conrad and Tell have been married since September 2014.
The author shared a snap of her sonogram when she revealed she was pregnant with baby Liam.
And now he's here! Stay tuned for snaps of the precious newborn.
This article previously appeared on WHO.