Royal sources tell MailOnline: 'Kate went into labour naturally and things are progressing well'
The 31-year-old is planning to give birth to the royal baby naturally and she was not induced into labour
Future king or queen will be born at Paddington hospital where Princess Diana had Prince William and Prince Harry
Prince William is also by his wife's side at the Lindo Wing at St Mary's Hospital in London, as he is on annual leave
He will take two weeks' paternity leave when the baby is born and accept the full entitlement of £136.78 per week
The Queen is at Windsor Castle and is being kept informed of Kate's condition while Prince Charles is in Yorkshire
The royal couple still do not know the sex of the baby who will replace Harry as third in line to throne
Kate's mother Carole and her younger sister Pippa will likely be with 31-year-old during labour
Birth will be announced on document placed on an easel to be displayed by the gates of Buckingham Palace"
