Jessa Duggar and husband Ben Seewald have welcomed a little bundle of joy -- a baby boy!

"We are so happy to announce the arrival of our sweet second son," the couple told People.

"He was born at 4:26AM this morning, weighing 8 lbs. and 11 oz., and measuring 21 3/4 in. long. Mom and baby are both doing well. We are so thankful to God for this precious new gift of life and are excited to be a family of four! Thanks to everyone for your prayers and well wishes!"

Duggar disclosed her due date had "come and gone" on Sunday, one day before she gave birth.

The pair, who are already parents to son Spurgeon Elliot, had previously told the magazine, "We are overjoyed to announce that Spurgeon has a new title in life as 'big brother!' We are so thankful that God is adding to our family."

Duggar and Seewald had concluded, "2017 is shaping up to be a wonderful year already, and we know Spurgeon will do a great job in his new role. Having Spurgeon has been such a wonderful blessing, and we cannot wait to see the face of this sweet new baby (or babies!)."

The couple announced in late August 2016 they were expecting Baby No. 2, and then Duggar documented her pregnancy on social media with frequent baby-bump updates and more.

Spurgeon was born on November 5, 2015, just about one year after the pair got married.