December 16, 2013 01:00 PM

Paul Archuleta/FilmMagic

It will be a very special Christmas for Gina Glocksen!

The former American Idol contestant and her husband Joe Ruzicka are expecting their first child, they tell PEOPLE exclusively.

“It’s so exciting!” says the singer, who’s on tour with Ballroom With a Twist until mid-May 2014.

In addition to having a baby on the way, Glocksen’s mother, Nancy Glowacki, is successfully recuperating from double bypass surgery.

“My mom is so happy. I told her before she went in so she had good news to fall asleep to,” says Glocksen, 29, adding that her mom is now “doing awesome,” especially with a new grandchild on the way.

“We are not going to find out the baby’s sex. We feel it’s life’s ultimate surprise! I’ve always had a vision of the doctor in scrubs walking into the waiting room telling our family, ‘It’s a ________!'”

The couple will celebrate their fifth wedding anniversary on New Year’s Eve.

“Our due date is July 2 — my birthday is July 4. It’s going to be the best birthday gift for me,” Glocksen tells PEOPLE.

— Monica Rizzo

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