The former Suits actress reportedly spoke openly about the idea at her baby shower in NY.
She said she still wears the same sized clothing but they fit her perfectly now and she doesn't "have big, long rolls hanging out of my trousers anymore".
The mother said the cosmetic surgery has also benefited her three children as now she has more energy for them.
"Traditionally, the royals don't really find out the sex of their baby", she explained.
She also says in the documentary: "I pointed out that humanitarians don't treat their father coldly, was that a lie, no, because the world watched it happen to my dad and the world watched her do it".
"She's making demands left and right and friends worry because she is on the go all the time and simply not taking any breaks", spilled the source.
Prince Harry and Meghan are expected to make the move from their two-bedroom cottage at Kensington Palace to the 10 bedroom mansion known as Frogmore House.
"Meghan Markle is very pretty so people want her nose".
However, palace employees are trying to make her realize her new life has a lot of restrictions.