A friend pointed me in the direction of Mumsnet to ask about this....
I’ve found out today from the results of a throat culture taken last week that I have Whooping Cough
I was vaccinated as a child, and had the vaccine in both previous pregnancies. I’m only 14 weeks pregnant now, so haven’t had the jab yet. What’s the deal with that?! Is it some kind of short-acting vaccine And I’ve just been unlucky enough to catch it?
The cough is absolutely horrendous. It’s a real hacking cough that sounds like a dog barking in my chest, and some of the coughing fits are making me vomit 
Both of my children are fully vaccinated and up to date so I’m assuming they are protected and shouldn’t catch it from me?