According to the latest update from InTouch Weekly, the Duggar grandchild count stands at 28. In sibling order, Joshua has four girls and three boys. John-David has a boy and a girl. Jill has three boys. Jessa has two boys and two girls. Jinger has two girls. Joseph has a boy and two girls. Josiah has one (confirmed) girl. Joy now has two boys and one girl. Jed has a son, and his twin, Jeremiah, welcomed a baby girl on Christmas Day 2022. That makes 13 boys and 14 girls, and Jed's baby girl will make 15. 

Judging from some clues in his online actions, Josiah Duggar may have welcomed another girl under the radar. A video of a 2022 fall family get-together showed his wife, Lauren, with a baby. Then, a follower on the DuggarsSnark Reddit channel also posted a TikTok picture from a few months ago that appears to show Lauren in a maternity dress. So this would make three children for Josiah. 

The final "secret baby" may be brother Joseph's. As The U.S. Sun reported, Joy's YouTube of her gender reveal in November 2022 included a long shot of her family watching the action. Joe can be seen holding a baby under his coat. Since his youngest daughter is already 2 years old, it's entirely plausible he is now a dad of four, which would indeed make Jim Bob and Michelle the grandparents of 30, soon to be 31...at least for now.