Giuliana and Bill Rancic are expecting their first child

The `E! News` anchor - who underwent a double mastectomy after being diagnosed with breast cancer last year - and her entrepreneur and TV presenter husband will welcome the baby in late summer via a gestational surrogate, meaning the child will be their genetic child.

Speaking on the `Today` show, Giuliana, 37, said: "We are so thrilled that our prayers have been answered. It was one of the best moments of my life, if not the best moment of my life. It`s incredible. We`ve been trying for so long, we`ve been through so much ... And to finally get that call from the doctor, it was just another world, another level."

Bill, 40, added: "It was pretty emotional because this was our last stop."

The couple`s struggles to conceive have been well documented, with Guiliana undergoing several rounds of in-vitro fertilization (IVF) and a miscarriage before the cancer was discovered during a mammogram ordered by her fertility doctor and Bill hopes their story will inspire others to turn "negatives into positives".

He said: "One of the things we`ve always tried to do is help others with our story. Whether it`s with the infertility issues, whether it`s with the breast cancer, we said we`re gonna turn these negatives into positives. And if we can help others by sharing our story, then it`s worth it."

Although they know the sex of the baby, the couple are trying to keep it a secret for as long as possible.

Giuliana said: "We know, but we`re not telling anyone yet. We`re seeing how long we can keep it a secret, so we haven`t told anyone yet."

sections: Celebrities