Only seven weeks have passed since the birth of their son, Duke, but Giuliana Rancic tells the new issue of Life & Style – on newsstands now – that she and her hubby, Bill, are already preparing for baby No. 2.

“We’ve got a few embryos on ice. They’re ready to go!” Giuliana tells Life & Style. “A lot of people have one kid and it’s enough. But for us, we’re just having so much fun that we’d love to have another child.”

And they’re not just thinking about it. “The wheels are in motion,” Bill confirms to Life & Style. “We already have plans in the works!”

Giuliana’s breast cancer diagnosis — and subsequent double mastectomy — in 2011 has delayed her chances of carrying a child. So when it comes to their next baby, “We’d have to go down the surrogacy path again. Thankfully, before I went on my medication, we did another round of [in vitro fertilization], so we have embryos ready to go.”

And Bill and Giuliana would consider using Duke’s gestational carrier, Delphine, for the birth of their second child, too. “She’s just a good person,” raves Giuliana, who regularly texts Delphine and plans to visit her several times a year.

For more on Bill and Giuliana’s plans for baby No. 2, pick up this week’s issue of Life & Style Weekly on newsstands now.