Britain's Catherine, Duchess Of Cambridge Smiles As She Meets Guests During A Garden Party Held At Buckingham Palace, In Central London
Britain's Catherine, Duchess of Cambridge smiles as she meets guests during a garden party held at Buckingham Palace, in central London June 10, 2014. REUTERS/John Stillwell/Pool

Blake Lively and Kate Middleton recently stepped out with their respective baby bumps on display. Both ladies looked stunning in their outfits and it seems that they have waged on a new maternity fashion battle. Let's take a look at their pregnancy fashion choices:

Duchess of Cambridge, who stayed indoors for a couple of weeks due to extreme morning sickness, stepped out in a pale blue Jenny Packham dress as she attended the black tie event at London's Natural History Museum on Oct. 21. She kept the look conservative but spiced the outfit with her legs on display. Prince George's mother wore her hair loose and kept her makeup minimal.

Keeping it elegant, Kate completed her look with a beige clutch and a pair of matching sandals. For another event, Middleton wore a fabulous grey Alexander McQueen dress and a Jane Taylor headpiece. She was seen accompanying Prince William at the President of Singapore's meet and greet event as she tied her hair in a sleek ponytail and carried a Packham clutch.

On the other hand, Ryan Reynolds' wife Blake Lively raised the temperature in a lemon yellow cleavage baring gown as she appeared at the 2014 Angel Ball in New York City. The "Gossip Girl" star chose a skin hugging Gucci gown and tied her hair loose. Blake coupled her look with a pair of sparkling studs and a matching ring.

Lively has been channelling some extraordinarily graceful looks since she has announced her pregnancy on Preserve.us. On Oct. 18 she wore a tight black skirt as she posed with her "Sisterhood of the Traveling Pants" co-star, Amber Tamblyn, and artist Travis Louie at a gallery opening in New York City. She has been sporting some daring as well as some classy gown looks for various events.

Blake Lively's delivery date is sometime in spring 2015 whereas Kate Middleton would welcome her second baby in April 2015. This is Middleton's second pregnancy. She gave birth to Prince George last year in July while Blake is expecting her first child with husband Ryan Reynolds. Before getting married to Blake, Ryan was married to Scarlett Johansson.