Shakira is pregnant with her first child.
The 35-year-old pop superstar posted on her website that she and 25-year-old footballer boyfriend Gerard Pique "are very happy awaiting the arrival of our first baby".
The Grammy-winning Colombian singer is postponing promotional activities and will not perform at Friday's iHeartRadio Music festival in Las Vegas.
Shakira said in a 2009 interview that she was ready to reproduce, explaining: "I really would like to have a big belly."
She was in a relationship with Antonio de La Rua, the son of former Argentinian President Fernando de la Rua, for more than a decade. They split in 2011.
Shakira is due to be a judge on next season's US version of The Voice.