Baby on the Way: Will & Kate's Royal Romance!

With today's exciting announcement that Prince William and his bride Catherine are expecting their very first child together, we're looking back at the royal couple's most romantic moments through the years.

Click through our gallery for all the adorable pics!

Just days before their baby secret would be revealed, The Duchess of Cambridge and her husband Prince William smile and wave to the crowd below from the balcony of Cambridge Guildhall on November 28, 2012 in Cambridge, England.

The  Duke of Cambridge and his bride show off their adorable dance moves during their Diamond Jubilee tour in Tuvalu on September 18, 2012.

While visiting Singapore, Duchess Catherine first sparked pregnancy rumors after reportedly turning down a glass of wine while on a Diamond Jubilee Tour of South East Asia and the South Pacific.

A dressed-down Catherine and Prince William share a spirited embrace after British cyclists Philip Hindes, Jason Kenny and Sir Chris Hoy won the gold and set a new world record in the Men's Team Sprint Track Cycling final during the London 2012 Olympic Games on August 2, 2012 in London, England.

Days before their one-year anniversary, Prince William and Kate are snapped at the UK premiere of African Cats on April 25, 2012 in London, England.

The twosome strut their stuff at premiere of War Horse on January 8, 2012 in London, England.

Prince William, Kate and Prince Harry are all smiles at the Sun Military Awards at the Imperial War Museum on December 19, 2011 in London.

Prince William, Prince Harry, Duchess Catherine, Princess Eugenie, Dave Clark leave a pre-wedding party hosted by Zara Phillips and Mike Tindall on the Britannia on July 29, 2011 in Edinburgh, Scotland.

The adventurous duo visit Blachford Lake on July 5, 2011 in Canada.

The couple shares a laugh in the rain on July 4, 2011 at Dalvay by the Sea, Prince Edward Island, Canada.

Prince William and Kate Middleton arrive for a Tree Planting Ceremony at Rideau Hall on July 2, 2011 in Ottawa, Canada.

The Duke and Duchess of Cambridge  spend the day at the Wimbledon Lawn Tennis Championships on June 27, 2011 in London.

The couple beams on the balcony of Buckingham Palace after the Trooping the Colour parade on June 11, 2011 in London.

Catherine and William shine at the ARK 10th Anniversary Gala Dinner at Perk's Field on June 9, 2011 in London.

The newlyweds meet with President Barack Obama and First Lady Michelle Obama at Buckingham Palace on May 24, 2011 in London, England. 

Prince William shares a kiss with his new bride on the balcony of Buckingham Palace after getting married on April 29, 2011 in London, England.

After eight years of dating, Prince William and Kate Middleton shared their engagement news with the world on November 16, 2010 where the bride-to-be proudly flashed the late Princess Diana's engagement ring on her finger.

Prince Harry, Prince William and Kate Middleton get rowdy in the stands during the RBS Six Nations Championship match between England and Italy on February 10, 2007.

A young Kate Middleton embraces Prince William on the day of their graduation ceremony at St Andrew's University in St Andrew's on June 23, 2005 in Scotland.