Mariah Carey and Nick Cannon reportedly expecting their first child

Mariah Carey is pregnant with her first child, a source confirmed to E! News.

A source close to the couple told E! News Carey underwent in vitro fertilization at the Southern California Reproductive Center in Beverly Hills, Calif., clinic.

Carey's publicist declined to comment on the report.

E! News did not say when the star is due to give birth or what the gender of the baby is.