Robert Downey Jr, wife expecting baby girl

Los Angeles: `Iron Man` star Robert Downey Jr is set to become a father again as his wife Susan is pregnant with a baby girl.

The 49-year-old actor announced the baby news himself on his social media sites like Twitter and Facebook, revealing the gender of the baby and when it`s due.

"Yo. Susan. Me. Baby. Girl. November. Scorpio?" he posted. Robert later posted a longer message on Facebook, "Um. I don`t know if it`s a `man`s world,` but I`m certain women run it. Susan and I are therefore delighted to announce we are expecting a baby. Girl. November."

The couple met on the set of `Gothika` in 2003 and married in 2005. They welcomed their first son Exton Elias Downey on February 7, 2012.

He is also a father to 20-year-old son Indio from his first marriage to actress Deborah Falconer. Indio was arrested for cocaine possession last week.