Kensington Palace declined to comment on the latest twist when INSIDER called.
A spokesperson said, "This is a deeply personal moment for Ms Markle in the days before her wedding". According to a new report from TMZ, Thomas is having heart surgery on Wednesday (May 16), and the recovery time overlaps with Meghan's nuptials.
"I don't know as of today what his plans are, but there's a very real concern", she told Britain's ITV television.
So if her dad is out of action, who could walk the future Royal down the aisle on Saturday?
While Meghan and Harry have yet to even address the baby rumors, it is safe to say they're most likely not even thinking about anything but their wedding.
The three reversals took place a total of 28 hours apart.
Markus Anderson is Ms Markle's closest male confidant and she has described him as a "loving, supportive, and endlessly fun friend".
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He joined Harry and Ms Markle in their VIP box at the Invictus Games in Toronto a year ago.
He also said he had suffered a heart attack a week ago.
Meghan Markle's love for her dogs is well documented and it's a passion she shares with her grandmother-in-law to be - the Queen.
Later in the day, Thomas Markle told TMZ he staged the photos in an effort to rebrand his image and admits the posed pictures look "stupid and hammy".
While uncommon, there is precedent for a royal bride to be walked down the aisle on wedding day; Queen Victoria carried out the duty for two of her daughters, Princess Helena in 1866 and Princess Beatrice in 1885. But after a lot of back and forth, Thomas, 73, has in fact confirmed that he will no longer be attending the Royal wedding.
He told celebrity website TMZ that doctors would clear any blockage, fix damage and "put a stent where it is needed".
He said she sent him a text saying she loved him and was anxious about his health, and that she was not angry about the staged paparazzi photo shoot.
It is also thought George was told off by his mother outside the church.
ROYAL CONDOMS?: Sure, you can get the usual tasteful royal wedding merchandise - from commemorative mugs, tea towels, stamps, coins, and t-shirts.