Mark Zuckerberg and his wife expecting their first baby after three miscarriages

Facebook CEO Mark Zuckerberg has said he and his wife Priscilla Chan are expecting a baby, also revealing that the couple experienced three miscarriages while previously trying for a baby.

The co-founder of the social network used a Facebook post to announce that Ms Chan is pregnant with a "healthy" baby daughter.

He did not say when the baby is due but said the couple had suffered three miscarriages over the last two years while trying to start a family.

He said in his post that many people are reluctant to talk about miscarriages but said he and Chan, who is a doctor, decided to share the information after hearing from friends who had similar experiences and ultimately were able to have children.

The couple hope to encourage other parents who may be struggling with difficult pregnancies.