“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,” Christina Aguilera told Marie Claire. “… I’m like, `Oh my god, can you believe it just happened?’“ Christina Aguilera follows in the footsteps of pop icons Demi Moore and Britney Spears by posing naked and pregnant on a magazine cover. The very pregnant Christian Aguilera bares her belly on the cover of Marie…