This has been a really interesting thread, so thank you to everyone for posting and for researching and getting opinons.

I think you have to weigh up the risks of potential complications of the vaccine and risks of potential complications from the flu. I've only had the flu (as opposed to a bad cold) once, and I can only imagine how much harder it'd have been if I were preg. Having said that, I often get secondary infections (throat, respiratory, ear) from a cold, and I have asthma. If the fluvax can prevent those complications, which would be much more likely with a stronger illness like the flu (which could jeopardise a preg), then I'd have it.

Good luck with everyone's decision-making.