There's a new man in Giuliana Rancic's life.

The 37-year-old E! News anchor and husband Bill Rancic welcomed their first child, son Edward Duke Rancic, via gestational surrogate Wednesday in Denver, Colorado. On Friday, the new mom tried to explained to her fans on Twitter just how in love she is with her son.

PHOTOS: Giuliana and Bill's love story

"It's true what they say (and what u all told us) . . . Bill Rancic and I couldn't love little Duke anymore than we do," Giuliana wrote, using her son's middlename. "He's a dream . . ." 

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The couple, who wed in September 2007, struggled to conceive for four years. While preparing to undergo her third attempt to get pregnant through IVF, Giuliana's doctor discovered she had breast cancer in August 2011. She decided to have a double mastectomy and is currently cancer-free.

VIDEO: Giulian and Bill reveal hopes and dreams for their son

Giuliana and Bill, 41, helped coach their surrogate in the delivery room through a four-hour labor Wednesday. "G and I feel blessed beyond words," Bill tweeted after Edward Duke's arrival. "We did it!"

This article originally appeared on Giuliana Rancic's Baby Edward Duke: "He's a Dream"