Jessa (Duggar) Seewald and Ben Seewald are celebrating the birth of their first child

Updated November 06, 2015 02:20 PM
Courtesy Jessa Duggar Seewald

Ben Seewald is a proud new dad, and he took to the family s blog to share his joy Friday.

“Our sweet baby boy was born last night. He weighed 9 lbs and 11 ounces and is 21 1/4 inches long!,” Ben wrote on “He’s precious and both he and Jessa are doing great.”

Ben, 20, and his wife Jessa (Duggar) Seewald welcomed their first child Thursday. While the happy couple isn’t quite ready to reveal their baby’s name, Ben promises an announcement is coming soon.

“Stay tuned – we will share his name soon,” Ben wrote.

Ben and Jessa, 23, shared their first photo of the baby, with PEOPLE exclusively Friday morning and have already received plenty of well-wishes from their family on social media.

Jessa’s brother-in-law Derick Dillard and her sister Jill (Duggar) Dillard congratulated the couple Friday.

“Congrats to Jessa and Ben on the birth of their baby boy!” Derick, 26, wrote on Instagram. ” @ben_seewald @jessaseewald y’all are great parents already! May you raise this little guy in the love and admonition of our Lord. #congrats #newparents #newnephew #prouduncle.”

Jill, 24, shared a celebratory message for her sister on Instagram, too, writing, “Yay! So excited for @jessaseewald and @ben_seewald.”

Jessa and Ben have also shared an album of baby photos on, which includes one of the newborn with proud grandfather Jim Bob Duggar.

The birth of the new baby will be a focal point in Counting On, TLC‘s upcoming series of specials featuring Jessa and sister Jill’s lives now.