Giuliana and Bill Rancic reveal their surrogate had a miscarriage

LOS ANGELES, June 2 (UPI) -- Giuliana and Bill Rancic have lost their second child.

The Giuliana and Bill stars struggled for years to become pregnant, and have one son by surrogate born in August 2012. The couple were trying for a second, but revealed on Monday that their surrogate's pregnancy ended in miscarriage.

"This whole season on Giuliana and Bill we've been trying to have another baby," Bill tells People. "Unfortunately our surrogate Delphine, who we love very much, had a miscarriage. It's something that we didn't see coming. We were devastated."

"She was about nine weeks pregnant," he reveals. "We were pretty close to getting into the safe zone. We experienced a miscarriage years ago when we were trying with Giuliana, so we had been keeping the pregnancy news tight to the vest."

The reality star says the news is "a double sadness" because he and Giuliana share their heartache with Delphine.

"Giuliana was rather distraught at first, but she's tough," he asserts. "In times like this we rely on our faith. Once the tears went away we started to look towards the future."

"We're fighters," he continues. "Hopefully we're going to have good news and Delphine will be on board one more time. We've had to battle it out and that's something that we're going to continue to do."

Bill posted a message on Twitter that thanks fans for their "prayers and support." The season seven finale of Giuliana and Bill airs at 8 p.m. ET Tuesday, June 3 on E!