Everything we know about Pippa Middleton's wedding to James Matthews -- so far

It's Pippa's turn!

The younger Middleton sister became the world's most famous bridesmaid during the royal wedding back in 2011, and now it's finally her time to shine. Pippa, 33, is set to tie the knot with businessman James Matthews -- and it's guaranteed to be the social event of the season! While most details of the lavish event have remained a secret, we've managed to gather some need-to-know information about Pippa and James' wedding.

WHEN & WHERE: The couple will say "I do" on May 20, 2017 at the St. Mark's Church in Berkshire, England. After the ceremony, guests will travel seven miles to her parents' home (Michael and Carole Middleton), where guests can celebrate Pippa and James in a garden reception. No details have surfaced about the decor, but we're sure Pippa, who is a pro at party planning, brought out all the stops for her big day. We can't wait to see pics!

THE GUESTS: It's safe to say the guest list is pretty iron clad. The soon-to-be newlyweds wanted a more intimate, smaller family affair, which is a major contrast to her older sister's wedding. Pippa put a "no ring, no bring" policy in place, meaning guests can't bring their significant other to the wedding unless they're married or engaged.

However, it seems like she made an exception for Prince Harry's girlfriend Meghan Markle -- sort of. For weeks, rumors swirled that Meghan was banned from coming to the wedding. Then the "Suits" actress requested time off around the same time as the nuptials, further fueling rumors that Pippa changed her mind. According to People, Meghan will accompany Harry to the evening reception, but she won't be at the ceremony earlier in the day.

"... Protocol prohibits unmarried and un-engaged partners to attend the event, but they are more likely to attend the big bash afterwards, which tends to be less formal."

But it seems like it's not Meghan that Pippa should be worried about. The couple may have some crashers to deal with on their wedding day. According to a recently published Church of England guidance, members of their church's parish are allowed to attend the ceremony as long as space permits and it's not a security or safety hazard.

The statement reads, "a marriage is a public ceremony which at the least all parishioners are entitled to attend." We are booking our trip to England, NOW!

THE WEDDING PARTY: Ever since Pippa and James announced their engagement, there's been much speculation whether or not Kate would be in the bridal party. Experts predict that Kate won't serve as maid of honor as to not upstage the bride. Instead, Kate will possibly be a reader instead, which is what her brother did at her own 2011 nuptials.

As far as other bridesmaids go, Pippa's close pals -- Alice St. John Webster and Camilla Campion-Awwad -- may also play big roles.

Of course, Prince George and Princess Charlotte will also play part in Auntie Pippa's wedding. Charlotte will be a bridesmaid while Prince George will be a page boy.

THE DRESS: Unfortunately, we know nothing about what Pippa will walk down the aisle in for her big day. But judging by what she wore to her sister's wedding, she'll opt for a figure-hugging number that'll accentuate her enviable curves. Pippa has been in full prep mode for the big day -- and her body looks sensational.

The brunette beauty was seen walking out of the gym recently and she looks better than ever. She's stepped up her workouts, going to the gym four to five times a week, and has been doing a lot more Pilates as of late to get a leaner build. Check out her jaw-dropping figure in the video above!