Already so grown! Jill Duggar’s baby son Israel David Dillard celebrated a milestone on Wednesday, May 6 — his 1-month mark. To commemorate the big day, the 19 Kids and Counting star, 23, shared a photo of her little man in a lion-printed onesie.

“Happy first month birthday to our handsome big guy! @derickdillard I hope and pray he grows up to be just like his daddy! #IsraelDavidDillard #babydilly #OneMonthOld,” she captioned the cute shot.

Israel’s proud dad, Derick Dillard, also shared a pic via Instagram, writing, “Happy 1 month birthday to this little man! He is growing up so quickly; it seems like just yesterday he was crying and we were changing his diaper. Oh wait... #israeldaviddillard #babydilly.”

These days Duggar is over the moon about the men in her life. On April 30, she shared a pic of her hubby Dillard cradling their baby boy.

“@derickdillard I’m forever in LOVE with you! You’re the best hubby and papa! I’m so blessed!” she wrote. “Thank you for loving God with all your heart, soul, mind and strength! I'm your greatest admirer!”

On April 28, Dillard opened up about being a first-time dad on his blog, writing, “Being a father of a newborn isn’t always easy, but taking care of my son is so rewarding. It’s been a fast and furious transition, but I wouldn’t trade it for anything.”