"I'm thrilled to announce today, on Father's Day, that I'm going to make @MillerLoLife, the greatest dad I know, a father all over again," Riegel revealed.
Riegel and husband Andrew Miller were wed in September 2007. The couple was introduced by Riegel's former All My Children co-star Cameron Mathison (Ryan Lavery), who just happens to be one of Miller's best friends.
Riegel first appeared on All My Children in July 2000. In 2005, Riegel won a Daytime Emmy as Outstanding Younger Actress. Riegel also starred as Heather Stevens on The Young and the Restless from April 2010 through November 2011.
On July 10, Riegel added, "Jack is going to have a (drumroll, please!)………… little brother!! And for those who thought my intuition was infallible, I was sure I was having a girl. Proving once and for all I am, alas, only human."