Courtesy Erin Ziering
The actor and his wife Erin welcomed Penna Mae Ziering on Thursday, April 25 in Los Angeles, they tell PEOPLE exclusively. Arriving at 9:21 a.m. and weighing in at 6 lbs., 9 oz., their daughter arrived on big sister Mia Loren‘s second birthday.
“We didn’t plan it!” Ziering, 49, tells PEOPLE. “Mia was born a week late and Penna was a week early.”