Knocked up no longer — Katherine Heigl and husband Josh Kelley have welcomed their first son, People has confirmed.

Heigl gave birth to Joshua Bishop Kelley Jr. on Tuesday, December 20, the site says. Little Josh is the couple's first son and Heigl's first biological child. She and Kelly have two adopted daughters, Adalaide, 4, and Naleigh, 8.

Heigl first announced she was expecting in June 2016, and said her daughters could not have been more excited to get a little brother.

"This is an incredibly exciting time for us filled with hope, anticipation, and hormones. Well, only I’m filled with hormones, but everyone in the family gets to enjoy them,” Heigl said in a statement. “We couldn’t be more excited to be able to finally share this news with our fans and are looking forward to continuing to share the journey with you all."

Heigl shared the experience of her first pregnancy with People through 2016, and said that it came at a time when she wasn't even sure she'd be able to conceive.

"It was totally unexpected but thrilling," she said. "Seeing as I have never been pregnant and as my OB/GYN reminded me last year, I’m of advanced maternal age, I wasn’t sure pregnancy was even in the cards for us. Turns out it was very much in the cards!"

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