If, just like us, you're literally counting down the days and chomping at the bit for every last detail of the upcoming event, this is where you'll find everything we know so far.
Keep an eye out as we update it with every.single.detail of the wedding of the year.
The date and time
The royal couple will tie the knot on May 19 2018 at 12 p.m. noon. The wedding will be televised so if you're watching from the US, it will be an early morning!
Harry and Meghan will complete a two-mile journey on the streets of London after exchanging their wedding vows in front of the Archbishop of Canterbury, Justin Welby. The marriage service will last an hour, beginning at 12pm and finishing by 1pm, and it takes place in the castle's 15th century St George's Chapel.
The route, in case you want to pop by to cheer them on (of course, you will) will see the happy couple take a trip down Castle Hill, along the High Street and then along Sheet Street, Kings Road and Albert Road, before returning to Windsor Castle along the Long Walk. Phew!
After their drive-by, they'll greet their guests from the ceremony at a reception at St. George's Hall (a very fancy location, if you're asking). The close friends and family party will be hosted by Prince Charles - as he did for William and Kate following their 2011 ceremony - at Frogmore House (and we are sure there will be plenty of dad dancing - we're looking at you, William, and banging club tunes).
After months of speculation, there's been rumours flying around left, right and centre about who will design the wedding dress of the year.
Bookies suspended betting earlier this year on who will be the designer of Meghan Markle's wedding dressafter a flurry of bets were placed on Alexander McQueen. Royal fans will remember that Sarah Burton of Alexander McQueen was the lady who designed Kate's ethereal gown.
Israel-based bridal designer Inbal Dror also recently confirmed to PEOPLE that - at the request of Kensington Palace (fancy!) - they sent a sketch for Meghan to consider.
Her dresses are often adorned with intricate embellishment while layered frills and sheer inserts are her staple. Ooooh.
Meghan's pre-wedding wellness plan
Meghan is a walking advocate for the healthy lifestyle she preaches. In fact, her mother is a yoga instructor so that's one of her secrets to staying in shape.
As for her healthy eating regime, she has previously said: "I try to eat vegan during the week and then have a little bit more flexibility with what I dig into on the weekends."
So what does a *perfect* day in her food diary look like? She told :
"A Clean Cleanse vanilla shake blended with frozen Ontario blueberries for breakfast, a Niçoise salad and glass of rosé, with some Grey Owl goat cheese and baguette on the side for lunch, and a leisurely dinner of seafood and pasta, and a negroni to cap off the night,"
We wonder if she's tucking into a glass of rosé right now...
She also swears by running as a form of meditation - but adds balance to her lifestyle by gorging on french fries at weekends. A girl after our own heart.
Kensington Palace has revealed that the music for the ceremony will be directed by James Vivian, the music director for St. George's Chapel, where Harry and Markle are set to wed.
Cellist Sheku Kanneh-Mason has also been hand-picked by the couple to perform. The youngster won 2016’s BBC Young Musician and received a phone call from Meghan Markle herself regarding a performance at the wedding.
According to the royal website, he said: “I’m so excited and honoured to perform at Prince Harry and Ms. Meghan Markle’s wedding. I was bowled over when Ms. Markle called me to ask if I would play during the ceremony, and of course I immediately said yes!"
The Christian gospel group, The Kingdom Choir, will also perform, and there will be a few surprise guests lined up, too.
Kensington Palace has announced that the couple has chosen London-based Philippa Craddock to work on their flower arrangements.
In the official announcement, Kensington Palace wrote: "Prince Harry and Ms. Meghan Markle have chosen floral designer @philippacraddock to create the church flowers for their wedding."
They also gave us an insight into the exact flowers the couple have plumped for, revealing: "The displays in St George's Chapel will feature foliage from The Crown Estate and Windsor Great Park, and will use seasonal plants including branches of beech, birch and hornbeam, as well as white garden roses, peonies and foxgloves.
"The designs will reflect the wild and natural landscapes from which many of the plants will be drawn.
"The Royal Parks will also supply pollinator-friendly plants from their wildflower meadows. These plants provide a great habitat for bees and help to sustain healthy and biodiverse ecosystems."
The florist herself also took to Instagram to discuss working with the couple, citing it 'an incredible privilege'.
She wrote: "I am loving working with them, it is an incredible privilege, and the designs will be a true reflection of them as a couple, with sustainability at the forefront. We will be using plenty of locally sourced greenery and seasonal flowers including peonies, garden roses and foxglove."
Kensington Palace confirmed that the couple is using Californian pastry chef Claire Ptak, who will whip up a delicious lemon elderflower cake for their big day.
In a celebration of Spring, the cake will be scattered with flowers, buttercream and zesty lemon - and we have little doubt it will be absolutely delish.
Food writer and food stylist, Chef Ptak, who runs Violet Bakery, was once interviewed by Meghan for her website, The Tig, so it's hardly surprising she's been snapped up.
As well as royals, dignitaries and A-listers, over 2,600 members of the public are in with a chance at attending the biggest wedding of the year.
The 2,640 people will include 'people who have served their communities' and will be chosen by the Queen's representatives from all over the UK.
There will also be a selection of people from the charities and organisations that the royal couple support (they are both huge charity advocates, if you didn't already know).
There will also be 100 pupils from two local schools and a staggering 610 Windsor Castle community members and 530 members of the Royal Household.
The gift list
Prince Harry and Meghan are apparently shunning a gift list and instead are asking their guests to donate money to Harry's charity via his Royal Foundation. How lovely.
A source told The Sun: “Prince Harry is a man who has everything. He doesn’t want guests spending lots of time buying him extravagant presents but he does want them to support his charity work.
“Obviously he has his own foundation with Prince William and Kate, and he also supports organisations like Wellchild and the Invictus Foundation.
“He’s expected to provide more specific information with the individual invites.”
While we can't confirm whether it's true or not, rumours are flying that THE Spice Girls will perform some of their classic hits at the wedding.
How do we know? Well, speaking on American talk show, The Real, Spice Girl, Mel B, admitted that the five-piece band will be attending the hotly-anticipated nuptials.
Presenter Loni Love asked Mel: "Do you know anybody that you think is gonna go to this wedding?" Mel nodded her head and mouthed, "Yeah, I’m going... I don't know if I should've said that!"
When she was asked if she knew anyone else attending, she slipped: "Well us five Spice Girls... why am I so honest?"
Then she added: "This is where I'm just like... I need to go. I'm going to be fired!"
Please let it be true...
According to The Irish Independent, Prince Harry and Meghan Markle will be spending time in Ireland soon after their wedding this Spring.
The couple will apparently visit in June or July for one night only and we're bet the locals are delighted they'll get a glimpse of the married couple for the first time.
Meghan's wife training
According to The Daily Express, as part of her training, Meghan spent two days in the English countryside where she undertook some security training sessions, including a 'kidnap and rescue' scenario.
Members of the Royal Army's SAS regiment taught Meghan how to act if she ever found herself in a hostile situation and apparently used live ammunition while rescuing the former Suits actress from her fake kidnapping.
The actress was also taught that it's best to forge a relationship with potential kidnappers and even learnt how to behave if her rescuers are killed and she has to fend for herself. Talk about intense!
Meghan was apparently also trained on how to drink tea (a quintessentially British activity). According to the actress’ new biography, Meghan: A Hollywood Princess, and US Weekly, Meghan learnt the royal protocol and etiquette of tea drinking, including the specific way to hold the cup. Meghan was given the chance to practise when she took tea with the queen before news of the couple's engagement was announced.
The hen party
According to Us Weekly, Meghan's hen party didn't quite involve willy straws and sashes; it was a much more civilised affair at the high-end, A-list retreat, Soho Farmhouse.
There's 100 acres of lush green countryside, swimming pools, spas and even a milkman to deliver your morning milk; how very British.
The couple's gift to the public
We won't be getting a day off in celebration of the wedding (*sigh*), but the government is giving us another present to honour the royal nuptials.
Pubs will have their licensing hours extended during the weekend of the wedding so we can all raise a glass (or five) to the happy couple. Cheers, Meghan and Harry.
It's good timing because May 19 also coincides with the FA Cup Final and Scottish Cup Final.
In the meantime, let's look back on the couple's cutest moments...