Mark Zuckerberg has shared a photo of his pregnant wife, Priscilla Chan, on Facebook on Wednesday. The couple announced they are expecting their first child back in July.

The Facebook founder and CEO gushed about his wife of three years in the caption of the photo, which was taken by famed photographer Annie Leibovitz.

“This is a stunning photo of Priscilla,” he wrote. “I love her expression: intense yet kind, fierce yet loving, leading yet always supporting others. Thank you to Annie Leibovitz for capturing her spirit so beautifully.”

When Zuckerberg, 31, and Chan, 30, announced they were having a baby girl, they revealed they had struggled for a while to conceive.

“We’ve been trying to have a child for a couple of years and have had three miscarriages along the way,” he explained.

“You feel so hopeful when you learn you’re going to have a child. You start imagining who they’ll become and dreaming of hopes for their future. You start making plans, and then they’re gone. It’s a lonely experience. Most people don’t discuss miscarriages because you worry your problems will distance you or reflect upon you–as if you’re defective or did something to cause this. So you struggle on your own.”

This is a stunning photo of Priscilla. I love her expression: intense yet kind, fierce yet loving, leading yet always supporting others. Thank you to Annie Leibovitz for capturing her spirit so beautifully.

Posted by Mark Zuckerberg on Wednesday, November 4, 2015