Sara De Boer / WireImage 1 / 13
Sara De Boer / WireImage 1 / 13

Giuliana and Bill Rancic made a conscious effort to keep secret the identity of the woman who carried their newborn son, Edward Duke, to term during her pregnancy, but on the Oct. 2 premiere of STYLE's "Giuliana & Bill," the proud parents are finally ready to introduce her to the world.

PHOTOS: Celebs who've used surrogates

As they adjust to life as first-time parents, the Rancics say they will forever be indebted to Delphine, who was coached in the delivery room by the couple during her four-hour labor.

Telling NBC's "Today" show that he and his wife of five years "hit the gestational carrier lottery," proud papa Bill cannot say enough about the brunette who helped bring his son into the world. "She's great. She's a very caring woman," he told Us Weekly in May, when then-anonymous Delphine was six months pregnant. "She's giving us a gift and we're going to be eternally grateful."

VIDEO: Giuliana and Bill reveal their dreams for Duke

Check out the clip to see the Rancics -- and Delphine -- tour the Colorado hospital where she gave birth to baby Edward Duke before "Giuliana & Bill" premieres Oct. 2 at 8 p.m. (EST) on STYLE.

This article originally appeared on Usmagazine.com: Giuliana & Bill Rancic Finally Reveal Their Surrogate

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