The celebrity couple - who don't often appear on the red carpet together - were among the slew of stars at the Jog On To Cancer party held at the capital's swanky Kensington Roof Gardens on Thursday (7 April).
Jacqueline looked lovely in a loose fitting jumpsuit and coat - love this look on her!
The actress - who is due to return to EastEnders shortly following maternity leave - arrived at the venue holding onto former TOWIE star Dan's arm before they posed for the cameras inside.
Jacqueline and Dan became engaged during a family holiday abroad last year, but have postponed a planned wedding for 2016 because they hadn't finished organising everything or found a venue they liked.
"I'm so bad at wedding stuff," she admitted. "I'm so unprepared and just rubbish. We did have a date but I'm changing it because I'm too unprepared. It will be next year, I had to be fully prepared to go. The dress is kind of all I've got ready!"
Jacqueline and Dan have one daughter together, Ella, one, while Dan is dad to son Teddy, two, from a previous relationship.
Jacqueline's pregnancy in pictures:
Copyright: Instagram jacjossa