Here is the low-down on the Duke and Duchess of Sussex’s first child:

Meghan and HarryThe Duke and Duchess of Sussex’s baby will be seventh in line (Joe Giddens/PA)

Where will the baby fall in the line of succession?
Seventh in line. The baby will bump Harry’s uncle the Duke of York into eighth place in the line of succession.

Princesses Beatrice and Eugenie move into ninth and 10th place, and the Earl of Wessex – the Queen’s youngest son – drops out of the top 10 for the first time to 11th in line.

How will the baby be related to the Queen?
The baby will be a great-grandchild of the Queen and the Duke of Edinburgh, and the Prince of Wales’s grandchild and the Duke and Duchess of Cambridge’s niece or nephew.

Will he or she ever be monarch?
Unlikely. The baby will have three cousins Prince George – a future king – and Princess Charlotte and Prince Louis, who are further up the line of succession, so it is a safe bet that throne will stay on the Cambridge side of the family.

The baby's cousins George and CharlottePrince George is a future king and Princess Charlotte is the spare to the heir (Jane Barlow/PA)

What will the baby be called?
William and Kate chose royal favourites for their children.

But will Harry and American-born Meghan go classic or break the royal mould when naming their baby?

If they stay traditional, something like Alice, Mary, Elizabeth or Victoria for a girl, and James, Philip, Frederick or Arthur for a boy are possibilities.

Queen Victoria statue near Windsor CastleCould Harry and Meghan name a daughter after Queen Victoria? (John Walton/PA)

In the US, the most popular name for a baby girl is Emma and Liam for a baby boy.

Will the baby be a prince or princess?
No they will not be a prince nor a princess, nor an HRH because George V limited titles within the Royal Family in 1917.

King George VHarry’s great-great grandfather King George V limited titles in the royal family in 1917 (PA)

So what will their title be?
A son would be known as Earl of Dumbarton – because a first son of a duke is allowed to use one of his father’s other lesser titles as a courtesy title.

Harry was also made the Earl of Dumbarton on the morning of his wedding, as well as being given a dukedom.

A daughter would be Lady (first name) Mountbatten-Windsor.

But the Queen could change this?
Yes. The Queen stepped in ahead of George’s birth to issue a Letters Patent to ensure the Cambridges’ children had fitting titles, but this royal baby is much further down the line of succession.

Will Harry and Meghan hire a nanny?
Most likely. Harry has been close to all his nannies and it is likely he and Meghan will arrange for a nanny to care for their baby while they are on official engagements.

Kate and William have the help of their full-time live-in nanny Maria Teresa Turrion Borrallo.

The Cambridges' nannyRoyal nanny Maria Teresa Turrion Borrallo in uniform at Princess Charlotte’s christening (Matt Dunham/PA)

Meghan’s close friend Jessica Mulroney had two nannies to help her with her twin boys and younger daughter.

When and where will the baby be born?
Kate had three successful deliveries at the private Lindo Wing in St Mary’s Hospital, Paddington, so Meghan might follow her sister-in-law’s lead.

Prince Louis's birthThe Duke and Duchess of Cambridge and Prince Louis outside the Lindo Wing at St Mary’s Hospital in Paddington (Dominic Lipinski/PA)

Harry was also born there in 1984. It is close to Kensington Palace and well practiced at dealing with royal births, and the publicity surrounding them.

Newborn Prince HarryThe Prince and Princess of Wales leave the Lindo Wing following the birth of Prince Harry (PA)

Will the baby have dual citizenship?
Harry and Meghan could apply for their child to have dual US-UK citizenship.

Meghan is planning to become a British citizen – but it is not known whether she will hold dual nationality, and at present is still a US citizen.

According to the American Embassy in the UK, a child born outside of the US and in wedlock to a US citizen parent and a non US citizen parent, may acquire US citizenship at birth if the US parent lived in America for five years – two of which were after the age of 14.