Is  Kate Middleton pregnant again with twins? Even if the palace continues to be silent regarding Kate Middleton's pregnancy speculations, rumors still continue to surface. Even if some actually believe that Kate Middleton is pregnant again with twins, Prince William himself told one soldier last month during St. Patrick's Day celebration that his wife wasn't conceiving.

Nonetheless, this does not mean that the Duke and Duchess of Cambridge have stopped in trying to add another baby to their family. One insider recently claimed that the 31-year-old Prince William would love to have a brother or as sister for their eight-month-old Prince George.

"They're all over each other in fully baby-making mode. They can't keep their hands off each other," said the source. The royal couple is currently in New Zealand to fulfill several engagements. They will soon go to Australia to continue the tour which will last for a total of three weeks. The royal tour is likewise Prince George's first trip overseas.

Prince William's father, Prince Charles, is reportedly the one who keeps on encouraging the young couple to have another baby. However, he advises the couple to have at least 18 months gap between Prince George and his future sister or brother.

Despite the claim that Prince William and Kate Middleton are trying to have a baby during their New Zealand tour, one insider says that the brunette beauty doesn't want to conceive yet in order to avoid pain during an important royal duty. In December 2012, the Duchess of Cambridge was confined because of acute morning sickness during her pregnancy with Prince George.