Or, as the Grammy winner tells it, she will "enter into mommyhood" next year.
In an interview with Glamour magazine, the 26-year-old singer-songwriter, who has sold more than 30 million albums worldwide, says that she intends to be a working mom who'll "balance" caring for her child and tending to her career, reports the BBC.
"I want to get it right," she is quoted as saying.
Describing the reaction of the father-to-be – Aguilera's husband, music executive Jordan Bratman, 30 – she says, "He's thrilled! He's just great."
Aguilera also says she finds Bratman (who, like her, hails from New York) "so supportive and amazing through everything. He came with me on the last leg of the tour and he was my support system. ... I gush. I'm a lucky girl."
The Couple's First BabyThis will be the first child for the two, who married Nov. 19, 2005, during a lavish three-day affair in California's Napa Valley. They had been dating since 2002.
Last month, Aguilera, Bratman, her mother-in-law and her sister-in-law set up her baby registry at the Beverly Hills boutique Bel Bambini.
In September, it was Paris Hilton who first publicly addressed the news about Aguilera's entering mommyhood – while introducing the singer at a Las Vegas event. Announced the hotel heiress: "Congratulations to the most beautiful pregnant woman in the world."