The 24-year-old is said to be joining the Queen and other senior royals for the ceremony at the Chapel Royal in St James's Palace on Wednesday, but her fear of the spotlight could mean she'll be a no show.
"She's very, very nervous about everything, but Prince Harry is being very protective of her and wants her there," a source close to the couple allegedly said.
However, Haz apparently reassured her that Prince William and wife Kate Middleton want the christening to be a private affair shared only with friends and family - with just 60 guests thought to be invited.
Kensington Palace hasn't commented on the expected guestlist, but K-Middy's family are expected to all be there.
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