Pregnant Tamsin Egerton shows off her burgeoning baby bump under a chic khaki trench as she enjoys a casual shopping spree with doting boyfriend Josh Hartnett

he is eagerly awaiting the arrival of her first child.

And Tamsin Egerton was making the most of some quality time with her doting boyfriend Josh Hartnett before their baby’s imminent arrival.

The pregnant 26-year-old recently embarked on a mammoth shopping spree alongside her Hollywood partner, emerging from a shop laden with bags.

Turning heads as she passed by, the St. Trinian's beauty stepped out in the chilly climes of London in a khaki coloured trench, which perfectly highlighted her burgeoning bump.

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Excited times ahead: The parents-to-be emerged from a shop laden with bags

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Turning heads: The St. Trinian's beauty, 26, stepped out in the chilly climes of London in a khaki coloured trench, which perfectly highlighted her burgeoning bump

The smitten couple, who have been together for four years after meeting in 2011 on the set of The Lovers, appeared to be in great and content spirits.

Josh and the model-turned-actress started dating in 2012 around the same time he dated fellow American actress Amanda Seyfried.

The Penny Dreadful actor has a number of famous exes including Scarlett Johansson, Mischa Barton and even Rihanna.

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Meanwhile... Josh, 37, kept his cool in a tailored trousers, a plain blue jumper and a coordinating jacket, styled further with a grey baker boy hat and retro glasses

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Close bond: The smitten couple, who have been together for four years after meeting in 2011 on the set of The Lovers, appeared to be in great and content spirits

His representative confirmed their baby joy in July, by telling Page Six: 'It’s true and they are beyond thrilled.'

Just a few months before the news broke, 37-year-old Josh revealed he was looking forward to being a father.

He told Playboy: 'I have to get a car that's safe for my kid. I don't have a kid yet, but that's the idea coming into my head these days.'

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Star couple: Josh and the model-turned-actress started dating in 2012 around the same time he dated fellow American actress Amanda Seyfried