Last week, The Talk's Julie Chen broke the news that Amal, 39, was pregnant with twins.
"Now, what we did find out that no one else is reporting is that the twins are due this June," Chen said. "The two have been married for just about two and a half years."
Shields, 51, knows what it's like to grow up in the spotlight. At 15, she was the face of Calvin Klein, and in 1980, she made a big splash on the big screen in The Blue Lagoon. She also has plenty of parenting experience, as she is the mom to daughters Rowan, 13, and Grier, 10.
"Every day there's a new challenge," Shields says. "My new thing is not screaming and not screaming back at them. I would engage in an absolute fight, and my husband would say, 'What's wrong with you? Why are you fighting with them?'"
"Chris [Henchy], my husband, calls it FOFO -- Find Out Before You Freak Out," Shields adds. "So before I react, I'm now trying to just count to 10."
ET caught up with Shields at her SiriusXM radio show, Brooke Shields Now, in New York City. On the one-hour radio talk show, airing Mondays, the normally private actress shares her life experiences in passionate conversations with experts, celebrity guests and listeners who call in to the show.