The little boys in Jessa Duggar and Ben Seewald's household are certainly growing up fast!

The Jill & Jessa: Counting On star shared this adorable new photo on Instagram featuring her baby son, Henry Wilberforce — and fans cannot get over the fact that he is two months old already.

"Superman!" she captioned the image. "Y'all, Henry turned two months old today!"

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Jessa and Ben tied the knot in 2014 and announced their second pregnancy back in August. The couple is also parents to a one-year-old son, Spurgeon Elliot — and have been open about their plans to adopt children.

"It’s something we are constantly praying about,” she previously told Celebrate Arkansas.

They first shared their exciting baby news with People back in February when little Henry was born.

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"We are so happy to announce the arrival of our sweet second son," they said at the time. "He was born at 4:26 a.m. this morning, weighing 8 pounds, 11 ounces, and measuring 21 3/4 inches 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!"

See how much the Duggars have changed over the years!