“Soooo, we’ve been keeping a secret…” Hill, 43, captioned a series of photos on Instagram on Thursday. “The Littlest Hill is coming soon 💙 #ItsABoy”
One of the photos in the series features Simon, 38, cradling her growing baby bump, while another shows the couple reading Dr. Seuss books, “Are You My Mother?” and “Hop on Pop.”
The “West Wing” actor also tweeted out the news revealing the baby is due in May.
Simon posted a photo of her belly on her Instagram story on Thursday while vacationing in Maui, writing, “Cats out of the bag #Babymoon.”
Hill and Simon, who met while filming “Ballers,” tied the knot in Antigua Guatemala in April 2018.