Bill and Guliana Rancic attend the Primary Wave Pre-GRAMMY Celebration at SLS Hotel on February 12, 2011. Credit: Paul Redmond/

Giuliana and Bill Rancic are finally getting their happily ever after.

After three rounds of in vitro fertilization treatments and a miscarriage, the spouses of nearly five years announced they will be welcoming a baby via a gestational carrier on Today Monday. Giuliana, 37, and Bill, 40, will explain what led them to this decision in a 30-minute Style Network special, Giuliana & Bill: Baby Dreams, airing Tuesday at 9 p.m. EST.

"Over the years we have opened our lives to Style viewers," the Rancics tell Us Weekly in a statement. "We are thrilled to be able to share this happy news with our fans and to help inform others who may also be struggling with fertility. This Style special will answer many questions we also had during this process."

E! News host Giuliana -- who underwent a double mastectomy in November and is currently cancer free -- said she and her husband "are so thrilled" to become first-time parents later this summer.

"This was our last stop," Bill explained on Today. "This was it. We had those two embryos that we had banked prior to learning about the breast cancer, and with the medicine she was on, this was our last effort. The prayers were answered."

Giuliana & Bill: Baby Dreams will air immediately after a new episode of Giuliana & Bill, which is currently in its fifth season on The Style Network.