Kate Middleton and Camilla Parker Bowles
Britain's Catherine, Duchess of Cambridge and Camilla, Duchess of Cornwall, depart Buckingham Palace in central LondonReuters

Rumour has it that Kate Middleton is pregnant with her second child and what has added fuel to fire is the duchess' long time friend Jessica Hay's hint that the royal might really be expecting a baby soon. 

"Kate's inner circle are buzzing with the news that she is expecting," Hay told Australia's News Daily print edition, according to The Hollywood Gossip."I've heard it from several different friends of theirs now and they're saying that they think there's going to be an official announcement in weeks. Kate's face is fuller like it was when she was first expecting George and she's been changing her hair, which could be to disguise the fullness."

She even suggested that whenever Middleton goes out in public she makes an extra effort to hide her tummy.

"She has rosy cheeks, she's letting her greys show again, and whenever she's out in public she goes to great lengths to hold something over her tummy," Hays further told the publication.

The royal couple is yet to confirm the news of the second pregnancy. Middleton's first pregnancy came to surface real soon as she was suffering from morning sickness and had to be hospitalized for the same. However, if the news of her pregnancy is true then this time she is expected to confirm the pregnancy after three months.

Meanwhile, it is still not known whether Prince George is going to have a sister or brother as a sibling.

Previously it was said that Middleton is expecting twin girls.

"Kate has always wanted a daughter, and she's talked about it so much that William did, too," a royal insider had told Ok!. "Kate's upbringing with Pippa [Middleton] was idyllic and she always wanted to have girls of her own to carry on the legacy of strong, happy women. Plus, she thinks George having sisters will be tremendously good for his character."

It is also understood the Middleton has gained quite a bit of weight. The duchess of Cambridge  reportedly now has over 10lbs baby weight and has also developed a sweet tooth. 

"Kate has the cookies made fresh every day," the source had revealed to the magazine. "Wills jokes that his daughters are going to have a terrible sweet tooth!"

Furthermore, soon Middleton and Prince William would be celebrating Prince George's first birthday on July 22 and he is set to receive some personalized gifts

"I'm sure he'll receive some traditional luxury children's items - a rocking horse or a silver tooth fairy box. But William and Kate would favour personal items like a scrapbook of his first year, with hospital tags and a lock of hair," Independent quoted royal biographer Marcia Moody.