Kate Middleton and Prince William have nicknamed their unborn child "our little grape" reported Yahoo News.

The Princess reportedly came up with the nickname because of the baby's size at nine weeks.  Yahoo reported that Middleton is doing light exercise during her pregnancy including prenatal yoga whom she hired an instructor to teach her at Kensington Palace. She's also reportedly reading parenting books that cover topics such as how to be a good parent and how to stay healthy for the baby.

The Daily Mail reported that she has been doing low impact power walks during pregnancy with her black Cocker spaniel Lupo.

Kate has also reportedly had a sweet tooth due to her pregnancy cravings and indulging in sweet treats such as cake and biscuits.

 "She's got sugar on the brain. Chocolates, biscuits, cake. When she sneaks off to a nearby Starbucks for a decaf coffee, she'll often pick up a baked good," a source said according to Yahoo News.

Hollywoodlife.com reported that the couple have come up with a name for the future queen: Elizabeth Diana Carole which  "tributes their mothers - her mom Carole, and the late Lady Diana - and Carole is the Latin variation of Charles, a nod to Prince Charles. The first name, of course, is in honor of Queen Elizabeth."

Entertainmentwise reported that Middleton by mistake let out the news that she is expecting a girl, but insiders are claiming that the couple have no idea what sex the baby is.

The Duchess appeared to almost refer to her unborn child as her "daughter" when she got a gift from someone during a royal visit to Grimsby last week. At the time she said she hadn't meant to say dauther after cutting herself off and then saying that they didn't know the sex of the baby.

"Nobody knows what William and Kate are calling their baby or even if they have decided on a name," A source said to E! News. "They are being very careful to keep everything to themselves. The duke and duchess are taking their privacy very seriously. They are not speaking to anyone about these private matters."