Asked by royal fans whether the couple could soon reveal they are expecting again, she said: "I do. And I think it will be really soon as well."
"I think she will be pregnant by this time next year. They have Africa in the fall, which will keep them really busy, so after that."
Royal author Katie Nicholl backed up the claims in an earlier interview with Entertainment Tonight, saying that although they won't make an announcement immediately, she revealed the couple are set on having a big family.
“I think it’s probably a little premature to be speaking about a second baby.
“That said, sources close to the couple told me that they really would love to have a big family.”