The Duggars just added another baby to their ever-expanding family.

Congratulations are in order for Jessa Seewald (nee Duggar), who has welcomed her second son with husband Ben Seewald.

Sharing the news on their website, the couple happily announced their baby’s arrival.

????????first – second ???????? #39weeks #BabySeewald2

A photo posted by Jessa Seewald (@jessaseewald) on Jan 27, 2017 at 1:16pm PST

“We are so happy to announce the arrival of our sweet second son,” they wrote.

“He was born at 4:26am this morning, weighing 8 lbs and 11 ounces and measuring 21 3/4 inches long. Mum and baby are both doing well.”

Jessa, 24, and Ben, 21 are already parents to one-year-old Spurgeon, announcing the news of their second pregnancy in an exclusive statement to PEOPLE magazine.

Click the link in my bio to see our “Seewald Family 2016” photo album on our website! So many milestones this week for our little family! ???? I’m overwhelmed by God’s kindness! Nov 1st @ben_seewald and I celebrate our anniversary, Nov 3rd baby #2 enters the 3rd trimester, and Nov 5th #SpurgeonElliotSeewald celebrates his 1st birthday! ???? Thanks to Jinger for doing this photo shoot with us! ????

A photo posted by Jessa Seewald (@jessaseewald) on Oct 31, 2016 at 1:44pm PDT

“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,” they said.

Jessa and Ben currently star in Counting On, a spin-off of the reality TV series that made the Duggar family famous, 19 Kids and Counting.

The show follows the lives of Jessa, her sisters Jill and Anna, and their growing families.