(We know 'cute' and 'vaccination' in the same sentence sounds odd!)
As a junior doctor, gorgeous Emily is helping promote the fact pregnant women can get a free flu jab from the NHS.
In the video, posted to Instagram, dad-to-be Pete, 43, encourages pregnant women to visit Boots pharmacy and find out more, before encouraging Emily, 26 to show the camera her bump – which she does!
Pete jokes, "Where is it?!" in reference to how neat Emily's bump is at seven months pregnant.
Fans left a string of lovely comments on the video, including one person who wrote: "Soulmates pure and simply soulmates." How lovely is that?!
Peter and Emily met via her doctor father, Ruaraidh MacDonagh, who treated Peter for a kidney stone. As a token of thanks, Peter arranged for the MacDonagh family to have complimentary tickets to his upcoming Plymouth show, which is where he met Emily for the first time.
It was a few months later that Pete went for dinner at the MacDonagh family home and met Emily for the second time. He writes in his book, Between Us: "I looked across the table at Emily and I was suddenly struck by how absolutely stunning she was. There was something about her that made me feel like a teenager again."
Next came a strong friendship, before romance started to blossom. And, as they say, the rest is history!
Peter and Emily married in July last year. As well as having a baby on the way, they're parents to daughter Amelia, two. Pete is also dad to son Junior, 11, and daughter Princess, nine, from his marriage to Katie Price.
Appearing on Loose Women last month, Peter said he would love a little boy this time around: "Because I have two girls and a boy I would love a boy, but for some reason we have, this time, not wanted to find out, but I'm hanging to have a boy which would be so amazing."
"A boy with blond hair and blue eyes would be beautiful," he added."