AceShowbiz -

Kate Middleton is pregnant with twin daughters, according to OK! Magazine. On the cover of the tabloid's latest issue, Kate is seen smiling widely. The headline reads, "Kate: I'm Having 2 Girls. Palace Confirms."

According to the outlet, Prince William wants to name one of his twin daughters Diana. "It's early days, but the buzz in the royals' inner circle is that Kate's pregnant again, and this time she's got not one but two buns in the over," a source told the tabloid. "They weren't even trying."

The source went on to claim that Kate found out about her third pregnancy via sonogram and sent the picture to her hubby who thought she was joking. "He immediately called her and said, 'You're joking aren't you? We're not really having another baby right now.' " She explained to her husband that not only were they having twins, but she was in fact 12 weeks along with two girls.

The report, however, has been debunked by Gossip Cop. According to the site, Kate is not even pregnant. The Palace insisted that they never made any such confirmation.