The former "Saved by the Bell" star and "Ask Elizabeth" scribe married artist and clothing designer Greg Lauren in 2003.
"In life there are moments you cherish forever and this is one of them," Berkley told People.com.
"Greg and I are so excited to be expecting our first child this summer. We couldn't be more grateful and overjoyed."
Berkley, 39, did not reveal the baby's gender or anticipated due date.
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