Winter also shared a sweet message on Sunday about their 5-year-old daughter, Sebella, becoming a big sis.
"This little one had a life changing experience the last two days. Big sister watching out over the world for her little brother. So proud of her!#imabigsisternow ?❤️?," the 41-year-old actor captioned his Instagram pic.
Sanchez and Winter announced they were expecting their second child in July. The couple got married in November 2008 at a ceremony in San Juan, Puerto Rico, and welcomed their first child together in January 2012.