Prince Harry celebrates his first Father's Day as a dad with adorable photo of baby Archie

Prince Harry is celebrating an exciting milestone: his first Father's Day as a dad!

He and Duchess Meghan took to their joint Instagram account to celebrate the occasion with an adorable new close-up photo of Harry holding baby Archie in his arms.

The bright-eyed 1-month-old is looking into the camera while holding on to one of his dad's fingers. Harry's wedding band is also prominently featured.

"Happy Father’s Day! And wishing a very special first Father’s Day to The Duke of Sussex," the post read.

The Duke and Duchess of Sussex welcomed Archie Harrison Mountbatten-Windsor, their first child, on May 6.

Harry and Meghan's baby Archie: How his birth – and name – break with tradition

We love our fictional dads, too: 6 best TV dads of all time, in honor of Father's Day

After the then-unnamed baby was born, Prince Harry told reporters he was "over the moon."

"It was amazing. ... I’m so incredibly proud of my wife," he said. "As every father and parent would ever say, your baby is absolutely amazing. This little thing is absolutely to die for."

Days after he was born, Duchess Meghan celebrated her first Mother's Day with a sweet Instagram post cradling the newborn's toes. It also paid homage to Harry's late mother, Princess Diana, with a display of her favorite flowers in the background: forget-me-nots.

"Paying tribute to all mothers today – past, present, mothers-to-be, and those lost but forever remembered," the caption read. "We honor and celebrate each and every one of you."

This article originally appeared on USA TODAY: Prince Harry celebrates his first Father's Day as a dad with adorable photo of baby Archie