Princess Charlene of Monaco pregnant with twins

When Prince Albert II and Princess Charlene of Monaco welcome their first child later this year, there will be not just one, but two babies.

The South African-born former Olympic swimmer is pregnant with twins.

"I feel absolutely great," Charlene, 36, told Hello magazine during a visit to New York.

Albert, the 56-year-old son of Princess Grace, has two other children from previous relationships, who are excluded from succession: daughter Jazmin Grace Grimaldi, 22, and son Alexandre Coste, 11.

The couple married in 2011 and announced the baby news in May, expressing their "immense joy."

After getting married, Charlene is now styled as Her Serene Highness The Princess of Monaco.