Keeping mum: the singer is yet to officially confirm her pregnancy

Christina recently said she is embracing the quiet life with Jordan: "We still go out but I'm not into the whole Hollywood party scene. I know I could have gone down that route and I'm so grateful I never did.

"We have this new thing about staying in and being cosy. Just the two of us hanging out at home, snuggling up on the sofas."

It will be the first child for the couple, who wed two years ago.