Best royal maternity fashion moments, from Princess Diana to Meghan Markle

This image is just iconic. The custom Givenchy dress, her smile, the jewellery, the hands, the simple hair and makeup and the nail varnish that gloriously skirts royal protocol.

Kate, always so elegant, always so demure. This aqua dress is the perfect shape to show off her growing bump.

This outfit is like the epitome of a princess. A semi-bridal looking number with a full-on tiara is definitely not a maternity look most people could pull off but it looks alllllmost as comfortable as a tracksuit?

Kate follows in the Queen's colourful footsteps in this neon pink coat that almost needs sunglasses to register it. The double breasted shape just skims over the royal bump.

We don't even know where to start with why we love this ensemble so much. The blouse kind of merges in to an incredible headpiece and also has a neck tie ideal for pinning a diamond brooch. And don't even get us started on that maternity cape. Wow.

This is '80s heaven, the drop waist satin elegantly outlines Diana's silhouette. This colour is ultra chic with Diana's blonde hair and her silver clutch and shoes add a futuristic element that we love.

No '80s style loose dresses for Meghan, this floral dress shows off her bump to perfection and we love the way she's clashed something quite summery with a heavier winter coat.

Admittedly the Duchess of York looks a bit like she's going to a fancy dress party, but this was the 80s baby! We love the commitment to the vibe, the matching hat, bag, shoes and even gloves.

This is an ultimate pregnant princess look. Diana looks slightly like she's stepped out of a production of Swan Lake but in the best possible way. We love the romance and softness of the colours and the pale tights are so inappropriate for a muddy field that it somehow makes it all a bit rock n' roll.

Kate went all out at a St Patrick's Day Parade wearing a very fitting green, we love the cosy collar and cuffs and her matching hat. Such a regal look!

GODDESS. This isn't any dress, this is a custom Dior cape dress. Harry and Meghan made quite the entrance during a trip to Morocco, both with the pregnancy glow. We love her oyster colour accessories and simple bun, so chic.

We're big fans of this slightly Queen Mother ensemble, the huge flower buttons stop it from looking fuddy duddy and the knitted fabric is stretchy, meaning Kate was super comfy while on duty.

On Christmas Day, while the rest of us were lying around in our pyjamas eating quality streets, these two dressed up to the nines for a public appearance. This outfit had us Googling "navy coats" within a millisecond of seeing it.

This sweet pink number is by Alexander McQueen, the same house who made Kate's wedding dress. The royals LOVE a fascinator, this special one is by Jane Taylor.