Sarah Drew pregnant with second child

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Sarah Drew won’t need much help from the prop department: she’s pregnant!

The Grey’s Anatomy actress is expecting her second child with husband Peter Lanfer, her rep confirms exclusively to PEOPLE.

The couple, who are already parents to 2½-year-old son Micah Emmanuel, will welcome their new addition in December.

“Peter and I are delighted to announce our pregnancy,” Drew tells PEOPLE. “We can’t wait to introduce Micah to his little brother or sister.”