After countless IVF treatments, a miscarriage and a heartbreaking cancer battle, Giuliana and Bill Rancic are finally just months away from achieving their dream of having a child, and on Tuesday's season finale of Giuliana & Bill, the couple open up about how their "miracle baby" has changed their lives.

Bringing STYLE network cameras along for their surrogate's 12-week ultrasound, Giuliana, 37, and Bill, 41, can't contain their joy once the ultrasound technician confirms their growing baby is healthy and well.

As the tech points out to the couple their baby's ten fingers and ten toes, Bill is just thrilled the child is healthy, but his wife has other aesthetic concerns. "The baby might have my forehead -- it's very large," the E! News anchor jokes.

Later, the couple reflect on the emotional journey they've experienced in their quest to bring Baby Rancic into the world.

Says Bill during the ultrasound of his future son or daughter: "That's a miracle! I never thought this day would come."

Watch the clip above to see how the couple's baby-to-be is growing and revisit their road to first-time parenthood before the season finale of Giuliana & Bill airs Tuesday at 8 p.m. (EST) on STYLE.