Congrats go out to Kristen Bell and Dax Shepard!

The couple welcomed their second child, a daughter named Delta Bell Shepard, they announced on Twitter Friday. Bell and Shepard’s little bundle of joy joins big sister Lincoln, 1.

The estrogen has now hit critical mass! Good luck, @daxshepard1. And welcome to the world DELTA BELL SHEPARD pic.twitter.com/72AFmnjmoC

— Kristen Bell (@IMKristenBell) December 20, 2014

Delta Bell Shepard is here. She doesn’t look like either @IMKristenBell or me, but we’re gonna keep her anyway. #christmascameearly

— dax shepard (@daxshepard1) December 20, 2014

Bell recently told People that deciding on a baby name was much more difficult the second time around. “We had a little bit of a breakthrough. We’ve settled on one, thankfully,” she said. “It’s a lot of pressure, especially because we felt ‘Lincoln’ was so perfect.”

As for her pregnancy, Bell said it was easy, breezy. “I’ve had a lot of friends who have had rough pregnancies and I’m really, really thankful,” she told Us Weekly. “People are affected differently by hormones, we’re all different.”

Congrats to the happy family!