06/04/2013 09:02 EDT | Updated 06/04/2013 09:19 EDT

Duchess Of Cambridge's Baby Bump Pretty In Peach At Queen's Coronation (PHOTOS)

The Duchess of Cambridge (and her cute baby bump) arrived at Westminster Abbey on Tuesday to pay her respects to Queen Elizabeth II on the 60th anniversary of her coronation.

A heavily pregnant Kate Middleton dressed up the royal bump in a pretty peach coat by one her favourite British designers, Jenny Packham, a matching lace dress and the same Jane Taylor hat she wore to the Queen's Diamond Jubilee last October.

Other guests included Princesses Eugenie and Beatrice, the Earl and Countess of Wessex, Peter Phillips and his wife Autumn, Zara Phillips and her husband the former England rugby player Mike Tindall.

Royal watchers better savour this moment because the event marks one of Duchess Kate's last appearances before she goes on maternity leave. The yummy mummy-to-be's last official engagement will be on June 13, when she is slated to christen a cruise ship.

So what will Princess Kate wear once she goes "in hiding"? Will she only be allowed to wear nude tones? Is black allowed? Will the Queen let her wear a fascinator and an Alexander McQueen gown to bed? If only we could be a fly on the wall at Middleton's and Prince William's home.

More royals!

Photo gallery 60th anniversary of the Coronation Queen Elizabeth II See Gallery