Country superstar Carrie Underwood and her hockey player husband Mike Fisher have been married for four years and have always dreamed of having a big family.

Sadly, they feared that their dream would never come true, after struggling to conceive.

The couple admits that they were not actively trying to get pregnant during their first couple years of marriage, but decided last year. on Underwood’s 30th birthday, that they were ready for a baby. Unfortunately, it took over a year before Carrie finally found out she was pregnant, and the long wait sent her into somewhat of a panic.

“Months were passing, and Carrie was beginning to get scared that she might not be able to conceive,” a source close to the couple told OK! Magazine. “When a whole year went by, she started to panic.”

We haven't picked names yet but it's looking like Fly is gonna fly. #boyorgirl #flyfisher

— Mike Fisher (@mikefisher1212) September 1, 2014

Luckily, the former American Idol does not have to worry, as she revealed earlier this month that she was pregnant and due in the spring. Carrie shared the exciting news on her Twitter and Instagram accounts, posting a picture of herself with her two dogs. One dog had a shirt on that read, “I’m going to be a big brother,” and the other shirt read, “I’m going to be a big sister.”

In honor of "Labor" Day…Ace & Penny would like to make an announcement. Their parents couldn't be happier! pic.twitter.com/bROrzuHJ4J

— Carrie Underwood (@carrieunderwood) September 1, 2014

“In honor of “Labor” Day, Ace & Penny would like to make an announcement,” she captioned the photo. “Their parents couldn’t be happier…”

The source revealed that Carrie and Mike are calling their unborn child their little miracle. “Carrie and Mike prayed a lot for a baby,” the source said. “They’re calling it their little miracle.”

Thanks for all the wishes we are truly blessed. We can't wait for our gift to arrive!

— Mike Fisher (@mikefisher1212) September 3, 2014