Kate Middleton, 35, covered her baby bump with British brand Moloh whilst heading to St Mary Magdalene Church in Sandringham.
She paired the long tweed coat, costing £445, with matching brown fur gloves and hat to stave off the cold weather.
Accented with gold buttons on the front and the sleeves, the cosy look was finished with neutral tights and her classic black block heels.
It isn’t the first time she has been seen wearing the coat, having been spotted in the elegant look in previous years.
The Duchess of Cambridge was joined by her husband Prince William, 35, and Prince Philip, 96.
Whilst covering her baby bump, which is due in April, their two children Prince George, 4 and Prince Charlotte, 2 were missing.
They were seen attending the church service in Norfolk, as the royal family spend Christmas and New Year every year in Sandringham.
This was also the first year that Prince Harry, 33, was joined by his fiancee Meghan Markle, 36, who have reportedly left Sandringham after spending new year in Monaco.
The pregnant royal previously wore the coat in 2014 for the Christmas day church service, before she became pregnant with Princess Charlotte.
The Moloh coat is from their autumn/winter 2013 line and is no longer available. Whilst it isn’t specifically a maternity style, the design lends itself to fitting a small baby bump.
The 35-year old is a fan of the brand, having been seen in a different Moloh coat whilst pregnant with Prince George in 2013.
She styled a tartan version whilst in Scotland on a state visit, which cost £425 and hid her growing bump at the time.
The royal baby is due in a few months bringing their brood up to three, with many believing it could be a boy.
This year is looking to be an exciting year for royal fans, with Zara Tindall also announcing she is pregnant and is soon to have her second child.
A royal wedding is also taking place this year between Prince Harry and Meghan Markle.
The May wedding is due to be a spectacular event and could even bring as much as £500 million to the British economy.