Royal baby: When is Kate Middleton due?

The royal baby is almost here!

Duchess of Cambridge Kate Middleton is currently expecting her third baby with husband Prince William, and she's due to give birth this month after having started her maternity leave at the end of March.

SEE ALSO: It's almost time! Parking restrictions in place ahead of royal baby No. 3

Though there's no official due date known to the public, royals experts estimate that Kate is due to welcome her third child in late April, as the palace announced her pregnancy on September 4, 2017, presumably after a common 12-week scan. Her due date being in April was announced on October 17.

There's a chance that William and Kate's third child -- whose gender will remain unknown until it's announced by the palace after its birth -- could arrive on their seventh wedding anniversary, which is April 29. It could also come on St. George's Day, which is April 23.

See photos of Kate Middleton's maternity style during her third pregnancy:

Of course, there's no telling when any baby will actually arrive, but one indication that they royal family is expecting Kate to give birth before the end of the month? The parking restrictions that were put up on Monday, April 9 outside of the private Lindo Wing, where she delivered her first two children and plans on delivering her third. Those permits expire on April 30, though they're able to be extended, as they were when she welcomed Princess Charlotte.

Kate Middleton made her last official royal outing on March 22, during a visit to the Olympic Park. She was seen just over a week later on Easter alongside William and Queen Elizabeth.

Kate Middleton and Prince William already share Prince George, 4, and Princess Charlotte, 2.

See photos of Prince George:

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