Kate Middleton in hospital after going into labour

It's happening! It's happening! It's happening!

Royal Baby Watch 2013 could be coming to an end very soon – with news that the Duchess of Cambridge has gone into labour.

Buckingham Palace officials have confirmed that Kate Middleton went into labour on Monday.

CBC News reports that Middleton was taken to St. Mary's Hospital in London, travelling by car from Kensington Palace with Prince William.

It is the same hospital where William and brother Prince Harry were born to Prince Charles and Diana, Princess of Wales.

Check out the news from some British news agencies:

• The Telegraph: Duchess in hospital after going into labour

• The Daily Mail: 'Things progressing well' after Duchess goes into labor

• BBC: Pregnant Kate taken to hospital in labour

• Yahoo! UK: Royal Baby: Live blog

Whenever Kate gives birth, the great-grandchild of Queen Elizabeth II will become the third in line to the throne.

The official announcement of the birth will come through traditional means. Palace officials will post a bulletin outside Buckingham Palace declaring the child's arrival and his or her gender. Expect the news to come via social media as well.

Hold onto your seat, folks. The Royal Baby could arrive at any time.