KHOU 11 News Houston shared Upton's Instagram photo:
"You're going to be the most amazing Mom!!" he wrote. "I can't wait to start this new journey with you! You're the most thoughtful, loving, caring, and strong woman I've ever met! I'm so proud that our little one is going to be raised in this world by a woman like you! I love you so much."
Verlander also told B/R Mag's Brandon Sneed (warning: post contains profanity) in August that Upton helped him keep everything together during a disappointing 2014 season.
"She was instrumental in me not...like, jumping off a bridge," he said. "I was depressed and kind of just upset at the world and trying to hide my own s--t."
Verlander and Upton married in November 2017, shortly after Verlander won his first World Series with the Astros.