The trainee doctor stepped out on Monday evening (18 November) looking effortlessly stylish in a loose black dress, black tights and black ankle boots. She kept warm with a faux fur gilet that obscured any glimpse of that baby bump!
Peter, meanwhile, looked as dapper as ever in a navy suit which no doubt pleased girlfriend Emily! Pete recently told Reveal: "Emily once told me, 'I love you in a suit' – and that was it. I now wear a suit at every available opportunity!"
Emily, 24, is expecting her first child with Australian singer Peter next year and has been looking amazing throughout her pregnancy.
Last night was no different as the couple attended a party thrown by entrepreneur John Caudwell in London.
They rubbed shoulders with stars including Eva Longoria, Boris Becker and Peter's old friend Amy Childs. "Amazing evening for Caudwell Children," tweeted Peter at the end of the night. "You're a good man, John Caudwell."
Caudwell Children is an organisation that provides support services, equipment, treatment and therapies for disabled children and their families in the UK.
Tonight, a glitzy charity gala will take place in London in aid of the organisation and Eva Longoria's Eva Longoria Foundation.
Peter and Emily, meanwhile, have plenty to be keeping them busy ahead of the birth of their first child together. (Peter is also dad to son Junior, eight, and daughter Princess, six, from his marriage to Katie Price.)
Not only is Peter working on his Pete's Champions initiative and raising money for Cancer Research UK, he's also the host of 60 Minute Makeover and gearing up for a big tour in 2014.
Peter and Emily announced their pregnancy during the summer, saying they are "over the moon" about starting a family together.
Peter and Emily's romance in pictures below: