Christina said in an interview with InStyle magazine: "I definitely want my kids to know Spanish. And I'm taking my tapes on tour."
Although the singer's father, Fausto Aguilera, confirmed his daughter's pregnancy last month, Christina is still reluctant to talk about it.
When asked directly if she and husband Jordan Bratman are expecting their first child, she coyly replied: "It's definitely something we can't wait to begin."
A joyous Fausto said last month: "I'm so excited. I want Christina to achieve all her goals. I wish her all the happiness in the world."
The Grammy Award-winning singer has been advised to take a break after she recently collapsed on tour in Australia, and admits she is enjoying resting up.
Christina said: "Bed is my favorite place to be right now.
"Seriously, I like to do everything in it, from eat to sleep."