Had a bit of a google about preventing pre-term labour, and yep, most of the advice is to be aware of any niggles and reporting it to your care provider and getting checked out.

There were some interesting ideas there tho, like using probiotics - not proven, but would be a harmless thing to take, so why not?

Looks like they're studying the use of progesterone therapy to prevent preterm labour.

And one page said that even dental health could be related! LOL. So look after your teeth & gums!

The main thing I took out of being pg is that its all really out of my hands and I've just got to go with it and take it as it comes.
I don't like the thought of it being completely out of my hands... I'm sure there are things I can do, if only to make myself feel better for trying. *shrug*. The recommendation is to have more than 18 months between pregnancies, so that's something I can control (except for woopsies I guess hehe) and other things.

Funny tho, my OB didn't say anything about my risk for preterm labour if I went again.. he was more concerned about the size of my next baby (DD was 3.5kg at 34wks) LOL.