Happy Anniversary, Will and Kate! See the royal duo's 26 most romantic moments

Happy Anniversary, Will and Kate! See the royal duo's 26 most romantic moments

It's been four years since Kate Middleton (now Catherine, the Duchess of Cambridge) and Prince William tied the knot!

And, seeing as the Royal Baby No. 2 is now a few days overdue, the happy couple just might find themselves celebrating two momentous occasions today, rather than one.

But let's not get too carried away. We'll continue to wait patiently and follow the duchess' lead. After all, she hasn't let the waiting game stop her from performing her normal duties this week, from picking up Prince George (now 21 months old) from swimming practice at Buckingham Palace to thoughtfully sending a breakfast package to the royal super fans currently camped out outside the Lindo Wing of St. Mary's Hospital in London.

And while we're twiddling our thumbs in anticipation of a new royal, we may as well celebrate the royal duo we do know a thing or two about.

See below for TODAY's picks of the 26 most romantic photos of Will and Kate, and stay tuned to TODAY.com for more royal baby news and reports!

1.

Cheers! Kate and Will share a toast in Singapore on September 13, 2012.

2.

The couple shares a happy moment during the London 2012 Olympic Games.

3.

How cute is this? The pair tries on red jackets as they visit the Canadian Rangers station in 2011.

4.

Kate and Will enjoy the Opening Ceremony of the London 2012 Olympic Games.

5.

Howdy, partner! The royals attend the Calgary Stampede on July 8, 2011.

6.

Kate and Will take a sweet walk in Buckingham Palace following their wedding on April 30, 2011.

7.

Hug it out! The two embrace after taking part in a dragon boat race in 2011.

8.

Kate and Will laugh as they sign the visitors book during a visit to Middle Temple in 2012.

9.

The couple has fun making hand prints in clay on July 10, 2011 in Los Angeles.

10.

Kate and Will share a sweet look while watching 'Rippa Rugby' in New Zealand.

11.

Kate and Will enjoy a wine tasting at the Amsfield Winery in New Zealand.

12.

Kate gets fanned in the heat during the Commonwealth games on July 28, 2014 in Scotland.

13.

How romantic! The royal couple walks behind a bagpiper as they arrive for a ceremonial tree planting in Ottawa, Canada.

14.

The Duke and Duchess are pictured in good spirits in London in 2011.

15.

Yellow is the happiest color! Here a supportive Will shares a loving look with Kate as they exit the King Edward VII hospital in central London, where she was seen for health issues during her first pregnancy.

16.

Smiles abound as Kate and Will visit the Stephen Lawrence Centre in London, England.

17.

The couple laughs as they learn how to DJ at a youth community centre in Adelaide, Australia.

18.

Hand in hand, Will and Kate leave St. Andrews' 600th Anniversary Dinner at the Metropolitan Museum of Art in 2014.

19.

A lovely sight: Kate and Will visit The Tower Of London's Ceramic Poppy Field in 2014.

20.

Kate and Will are all smiles as they arrive at a citizenship ceremony near Ottawa, Canada in 2011.

21.

The duo catch each other's eyes as they wave to the crowds from the balcony of Cambridge Guildhall on November 28, 2012.

22.

How fun! Kate and Will attend the Eventing Cross Country Equestrian event during the London 2012 Olympic Games in 2012.

23.

Side by side, Kate and Will visit Province House on July 5, 2011 in Charlottetown, Canada.

24.

The very beginning! Here, Kate and Will are pictured on the day of their graduation from St Andrew's University in 2005.

25.

One happy family: Will holds Prince George as Kate gives him a toy on April 20, 2014.

26.

Happily ever after! Will kisses his new wife, Kate, on the balcony in Buckingham Palace after their wedding.

Original article and pictures take media1.s-nbcnews.com site