Mum-to-be Christina Aguilera is downright giggly as she opens up for the first time about her baby boy, her marriage, and her future in the “Sexy Mama” cover article featured in the January 2008 issue of Marie Claire, on newsstands nationally December 11.

Xtina on getting knocked up: “We were planning on starting to try after the tour. And so, I had gone off the Pill to prepare my body, because I didn’t know how much time it would take. You’ve heard it takes some time — except with Power Egg and Super Sperm here… I’m like, Oh, my God, can you believe it just happened?”

Xtina on being pregnant while touring: “I was paranoid. There are so many things that could go wrong — somebody could slip, somebody could fall, I could fall. There was no way in hell I was going to jeopardize my baby for my show.” [So she wore a well-concealed heart monitor. She didn't want to broadcast the news.] “I didn’t want to make the audience uncomfortable, like, ‘Pregnant lady onstage! Is she going to be OK?’ But I had to announce it to my band and my dancers, because I wanted to make sure they had my back.”

Xtina on not making a pregnancy announcement: “Because I hadn’t said anything, people thought I was trying to keep it this big, bad secret, and that’s not the case at all. I just wasn’t commenting. I’m not being like, ‘Hey, everybody, I’m pregnant!’ I’m not that girl.”

Xtina on motherhood and her sexy image: “We’re so labeled. If you’re too sexual, you’re slutty. If you’re not sexual enough, you’re a prude. I like to put it out there as a topic of conversation. Why does it bother you? What’s your problem with it? Am I really hurting you? Let’s get to the root of it. I have more than one side of me that likes to get out on a stage and sing. Sometimes I want to be aggressive, sometimes I want to feel empowered in my sexuality and my vulnerability. I want to put all that out there.”