Emily Deschanel welcomes a baby boy

It's a good day for Emily Deschanel and David Hornsby.

The "Bones" star and her "It's Always Sunny in Philadelphia" hubby brought a new bundle of joy into the world on Wednesday named Henry Hornsby, according to People.

MORE: Check It Out: Bones Star Emily Deschanel Shows Off the Baby Bump

Deschanel confirmed to E! News she was expecting their first child together back in March, which of course, brought on speculation of whether or not Dr. Brennan would be expecting also.

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The actress recently showed off her baby bump on the cover of Fit Pregnancy, where she said, "I really like being pregnant. I'm in awe of the process and the science. And seeing my belly move is pretty amazing; it's like in the movie 'Alien.'"

Now it's time for a whole new journey!

Her "Bones" costar T.J. Thyne celebrated via social media.

"CONGRATULATIONS EMILY D!!!!!!!!!!!!!!" he tweeted Wednesday. "Yay yay yay!!! :o)"

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But we're sure nothing will compare to Auntie Zooey Deschanel's excitement.