Duke and Duchess of Camrbidge
Prince William may miss royal birth because of polo match (Reuters)

Even as hundreds of photographers, fans and journalists have been camping in front of the Lindo Wing of St. Mary's Hospital to have the first glimpse of the much-awaited royal baby despite not knowing Kate Middleton's due date, The Sun has gone a step ahead by live streaming the vicinity of the hospital.

The hype around the birth of Prince William and Kate Middleton's first child has been overwhelming. And interestingly, The Sun has fixed a camera that focuses on the front door of the Lindo Wing of St. Mary's Hospital, giving live view of every movement in the vicinity. 

The monitor will capture all the comings and goings into and out of the Lindo Wing where Duchess of Cambridge Kate, 31, is to give birth, reported the daily.

The royal family is tight-lipped about it but Kate's mom Carole Middleton has reportedly let the cat out of the bag by revealing the expected due date.

Kate's mom has reportedly told her friends that the much-awaited royal baby will be a Leo, suggesting that the baby will not arrive until at least 23 July, according to a report by NBC website.

Speculations were also doing the rounds that the Duchess of Cambridge would give birth on 17 July.

It was earlier reported that Kate's due date was 13 July.

"Some of Kate and William's closest pals were at a barbecue hosted by a family friend of the Royals recently. They were all discussing the fact that Kate's baby is due to be born on July 13. Everyone was very excited," a friend of the couple had told The Daily Mail.

Interestingly, the royal family has not revealed the due date though the Clarence House official website gave out a statement that the royal couple was expected a baby in July.

Kate will check into her suite in the Lindo Wing of St. Mary's Hospital, when she goes into labour.

The hype around the birth of the royal baby has been overwhelming, and the report by Centre for Retail Research (CRR) even claimed that it would boost British economy.

A new report by CRR said that the birth of Prince William and Kate's first child, who will be third in line to the throne, may boost retail sales by around £243 million (approximately $376) between 1 July and 31 August, 2013.

A total of £87 million is expected to be spent on festivities, £80 million on souvenirs and toys, and £76 million on books, DVDs and media.