Meghan MarkleandPrince Harry’s daughter has arrived — andArchiecouldn’t be more excited for his new role as big brother!

WithLilibet Diana’s birthon June 4, Archie “is very happy to have a little sister,” a spokesperson for the couple tells PEOPLE in this week’s cover story.

The source continues, “Meghan and Harry are also taking time off to focus on their family.”

Archie also appeared in a black and white snap from the couple’s maternity photo shoot as he was held in Meghan’s arms with his face pressed into Harry’s chest.

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Prince Harry, Meghan Markle

Archie will soon be showing his little sister all of his favorite ways to spend time in California, from walks on the beach to playing with the family’s two dogs, who areArchie’s “best friends.”

“To have outdoor space where I can go for walks with Archie and we go for walks as a family and with the dogs. You know, we go on hikes or go down to the beach, which is so close,” Harry toldOprah Winfreyduring their interview, which aired in March, aboutfamily life in Montecito.

Listen below toour daily podcast PEOPLE Every Dayfor more onPrince HarryandMeghan Markle’s new daughter, Lilibet Diana.

Meghan Markle and Prince Harry.Samir Hussein/WireImage

Meghan Markle and Prince Harry

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Meghan, 39, and Harry, 36, took to theirArchewell Foundation websiteto share a personal message upon sharing news of Lili’s arrival: “On June 4th, we were blessed with the arrival of our daughter, Lili. She is more than we could have ever imagined, and we remain grateful for the love and prayers we’ve felt from across the globe. Thank you for your continued kindness and support during this very special time for our family.”

source: people.com