Derick Dillard shared a sonogram of his unborn son with wife Jill Duggar in an Instagram post published Thursday.

Jill is just over 22 weeks pregnant, and Baby Dilly can be clearly seen in the awe-inspiring photo.

"A week before Thanksgiving, I'm thankful for our baby boy!" Dillard wrote. "Awesome to think his heart has already beat [sic] about 26,784,000 times! Psalm 139:13-18."

The cited passage reads: "For you created my inmost being; you knit me together in my mother's womb. I praise you because I am fearfully and wonderfully made; your works are wonderful, I know that full well.

"My frame was not hidden from you when I was made in the secret place, when I was woven together in the depths of the earth.

"Your eyes saw my unformed body; all the days ordained for me were written in your book before one of them came to be. How precious to me are your thoughts, God!

"How vast is the sum of them!Were I to count them, they would outnumber the grains of sand—when I awake, I am still with you" (New International Version).

The "19 Kids & Counting" stars have consistently shared updates, photos, and videos chronicling their courtship, marriage, and pregnancy.

In a video posted this week, the couple shared sonogram photos, and Dillard remarked, "He's sleeping like mom sleeps," in regards to Baby Dilly.

Jill is also enjoying special moments in her second trimester

"I'm feeling good. I feel the baby kick now. I actually got to feel him move a couple times this week," she shared.

"We are super excited to start our family and are happy to have ya'll along for the ride!"

The Dillards have not revealed what they will name their son, but said that they are not going to do a letter theme as their parents and Jill's brother Josh did. They may, however, start a new tradition.

"We may do some kind of theme, like family names," Jill told PEOPLE last month.

Baby Dilly is due on March 24.