This is the royal rule Meghan Markle must follow with baby names

And what does it all mean?

Meghan Markle and Prince Harry announced the exciting news that they are expecting a baby just weeks ago, with the royal baby expected to arrive in Spring 2019.

Since announcing the news, Meghan and Harry have been getting everyone excited, referring to their future arrival as 'our little bump' and explaining how excited they are to 'join the parenting club'.

But what will they be naming the newborn? Who will they choose as God parents? And what will the royal baby's title be?

While there are only rumours at this point, according to one royal correspondent, there's one rule that Meghan will definitely have to follow, and it's all to do with the announcement of the baby name, and when it will officially take place.

Just like Prince William and Kate Middleton have done with their three children, Prince Harry and Meghan Markle will have to wait a number of days after the birth before they reveal their newborn’s name.

This, according to royal commentator Victoria Arbiter, is royal tradition, with the royal parents also having to announce the name to other royal family members before the name is made public.

‘The reasoning is perhaps two fold,’ the royal commentator explained in an interview with Town and Country earlier this year.’ On one hand there's a desire to inform the families before a public declaration is made and any new parent appreciates having a little private time to get to know their new addition before the onslaught of announcements.’

She continued: ‘Royals, however, also have to consider the great responsibility in naming a new member of the family and I expect they want to be a hundred percent certain of their choice before announcing the name and sealing the baby’s place in history.’

When will the announcement be made, and what will the name be? We'll have to wait and see.