The Duchess of Cambridge is preparing to welcome her third child any day now, and London is abuzz with anticipation.

Kate has spent the last few weeks between her parents' home in Bucklebury and Sandringham, but has now returned to London to prepare for the arrival of her new bundle of joy.

Her two older children, Prince George and Princess Charlotte, have returned to school after spending the holidays with their grandparents, Carol and Michael Middleton.

The family enjoyed an Easter egg hunt together, and Kate was even spotted doing the weekly food shop in Waitrose, Norfolk.

According to Hello's royal correspondent Emily Nash, “Kate and the family have spent a lovely Easter holiday in Norfolk but now they're back in London and George is back at school and Charlotte back at nursery.

I'm sure Kate will be enjoying a few moments of peace before she becomes a mother of three.”

The baby is due to be born in St Mary's Hospital in Paddington, and London has already set up barriers outside the exclusive Lindo Wing in anticipation of the royal arrival.

Over the past week, royal fans have been camping outside the hospital in the hopes of catching a glimpse of the Cambridge family and the new baby following the birth.

The baby's arrival comes just four weeks before another major royal event, the wedding of Prince Harry and Meghan Markle, who are set to tie the knot on May 19 at St George's Chapel in Windsor.

The last time Kate was seen at an official engagement was on Easter Sunday, when she attended the annual church service at St George's Chapel, Windsor, with William, the Queen, and other key members of the royal family.

William, on the other hand, was last spotted one week ago as he enjoyed a night off parenting duties to attend the Aston Villa vs Cardiff City football match in Birmingham.

After the game, William seemingly let slip the gender of the baby, hinting that he was set to have another son.

According to the Mirror, he told fans, “I'm going to insist the baby is called Jack,” before adding after a pause, “or Jackie.”