Royal Baby Birth: 7 Things We Know to Expect

— -- Kate Middleton, the Duchess of Cambridge, is due to give birth this month, which means the royal baby watch is on.

Kate, 33, and her husband, Prince William, 32, have not publicly shared the exact date they are expecting to welcome their second child, but Kate has said herself she is due the second half of this month, sometime between April 15 to April 30.

As the due date nears, royal sources have begun to give a preview of what the public can expect when the couple’s second child is born. Kate and William's first child, son Prince George, will turn 2 years old in July.

1) Baby’s Sex Will Be a Surprise. Contrary to some tabloid reports, William and Kate do not know the sex of the baby, royal sources told ABC News.

2) No New Nanny. There are no plans for William and Kate to hire an extra nanny or baby nurse or any additional staff when they welcome their second child, according to royal sources. Last March, Kate and William hired Maria Teresa Turrion Borrallo as a full-time nanny for Prince George.

3) Prince Harry Will Miss the Birth. The baby’s paternal uncle, Prince Harry, is spending the month in Australia with the Australian military and will miss the birth. Both he and Prince Charles, the baby’s grandfather, will be attending the ANZAC celebrations in Gallipoli, Turkey, on April 25. Depending on the date of the birth, Charles could also miss the delivery day.

4) William Will Take Paternity Leave. Royal sources told ABC News that William will take a two-week paternity leave from his new job at the East Anglia Air Ambulance, where he works as a pilot. Kate began her maternity leave March 28, the day after making three appearances in London with her husband. The family of four will spend a few days at Kensington Palace after the birth before returning to their home at Anmer Hall.

5) Family Will Be the First to Know. Public announcements about both the Duchess’s labor and the baby’s birth will be shared only after all relevant family has been notified, royal sources said. When Prince George was born, the Palace held the announcement for several hours so Kate, William and George could spend some time together as a family.

6) Kate's Medical Team. Kate will deliver in the same location where she gave birth to Prince George -- the Lindo Wing of St. Mary’s Hospital in Paddington, west London -- and Dr. Guy Thorpe Easton will lead the medical team overseeing her delivery. Royal sources say how long Kate stays in the hospital depend on the time of the birth and how the labor progresses.

7) Less Pomp and Circumstance. When Prince George arrived in the world, paparazzi surrounded the hospital and the world awaited news of the birth of the future King of England. This time around, the bulletin announcing the baby’s birth will be delivered privately to Buckingham Palace, home of Her Majesty the Queen. The same easel that was used to announce Prince George’s birth will again be posted outside the Palace with the baby’s sex, time of birth and weight. The name will be announced in due course following the birth announcement, according to royal sources.