Jessa Seewald gives birth to ... a boy! Seewald baby weighs heavier than cousin Israel David Dillard

Baby Seewald is shown his first picture as posted by his parents in the Duggar Family Blog. Jessa Seewald gave birth to her and husband Mike's first child on Thursday, Nov. 5, 2015, just a day after she celebrated her 23rd birthday. (Duggar Family Blog)

Ben and Jessa Seewald are now the proud parents of a healthy baby boy!

Jessa gave birth to Baby Seewald (the couple has not yet revealed the baby's name) on Nov. 5, Thursday, just a day after Jessa celebrated her 23rd birthday.

According to the Duggar Family Blog, the latest Duggar grandbaby is 21 and 1/4 inches long and weighs 9 lbs. 11 oz. - exactly 1 oz. heavier than his cousin Israel David Dillard. Interestingly, Jessa was also Jim Bob and Michelle Duggar's heaviest baby, weighing around 9 lbs. and 15 oz.

Ben and Jessa have shared the first photos of their baby at  the Seewald Family Blog, and they continue to give updates about the baby.

"Our sweet baby boy was born last night," Ben writes. "He's precious and both he and Jessa are doing great. Stay tuned—we will share his name soon!"

Jim Bob and Michelle, on the other hand, cannot contain their excitement over the arrival of Duggar grandbaby number 6.

"So excited!!!!! Ben and Jessa have had their sweet new baby! A beautiful baby BOY!!!!! More details soon. Mom and baby are both doing great! Thanks for all your prayer! Congrats Ben and Jessa, we love you!" they write in their Facebook page.

Most of Ben and Jessa's fans had incorrectly guessed that Jessa was carrying a baby girl. When they created a poll where fans could guess the baby's gender, a whopping 58,350 assumed the baby would be a girl, while only 23,158 thought the baby would be a boy. Meanwhile, 17,999 others guessed Jessa was carrying boy-and-girl twins; 8,608 thought she was carrying twin girls; and 3,096 suspected she was carrying twin boys.

Jessa earlier told PEOPLE that Baby Seewald's timing could not have been more perfect in their lives. "I think having this first year together to share our lives, just the two of us, has been special," she said, adding that she and Ben are "definitely excited to be parents."

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