As Life & Style exclusively reported, Kate Middleton is pregnant with her third child, and younger sister Pippa Middleton may change her wedding plans because of it.

"She may put off the wedding until Kate has had her baby," a friend shares of the 33-year-old, who got engaged to hedge fund manager James Matthews in July.

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"Pippa is planning things around Kate," the pal says, while another source adds, "[She] desperately wants the focus to be on her rather than her sister's bump."

kate middleton pippa middleton getty images

We can't wait to see how Prince George, 3, and Princess Charlotte, 17 months, interact with their new sibling!

For more on the royals, pick up the latest issue of Life & Style, on newsstands now! And scroll through the gallery below to see Kate’s best family moments.