showed off her mature baby bump for the cover of Life & Style
in an exclusive cover story.
Mariah and husband Nick Cannon are expecting twins (a boy and a girl) this month, and Mariah may have felt self-conscious about her changing body.
"I was feeling very vulnerable about taking pictures at all right now, but then I didn't want to miss this opportunity to document this once-in-a-lifetime experience," Mariah told the magazine. "My ultimate goal was to share this incredibly personal moment with my true fans."
The singer went on to reveal how the process of becoming a first time mother has shaped her perception on parenting, saying, "Now I have so much respect for mothers everywhere, especially those who've had difficult pregnancies or given birth to multiples. We need to have Mother's Day once a week!"
The new issue of Life & Style will be available nationwide on Friday.