The new mom is earning plenty of praise for her style choice, wearing a dress that highlighted her so-called mummy tummy instead of hiding it.
The belted ensemble by Grace Wales Bonner was tied off above Meghan's waist, showing off her figure just two days after giving birth.
The couple took center stage as they went to visit great-grandparents Queen Elizabeth and Prince Philip, answering a few questions from reporters as they posed with baby Archie, whose full name is Archie Harrison Mountbatten-Windsor.
"It's magic," Meghan told reporters. "It's pretty amazing. I have the two best guys in the world and I'm really happy."
Added Harry: "We're just so thrilled to have our own little bundle of joy. We hope to spend some precious time with him as he slowly starts to grow up."
The name Archie stunned many. Ahead of the announcement Wednesday, Arthur had been considered the top contender.
Archie is a name unheard of in British royalty, but it has deep roots in American pop culture, from "All in the Family" to the Archie graphic novels.