However, probiotics also warrant a mention here - as their primary role is to defend the body against infectious agents (ie Group B Strep) and a course of high potency probiotics from your health food store can wipe out or prevent GBS or thrush infections quite easily.
can i just ask, what sort of probiotics...do you mean something like 'inner health plus' or similar?

Also, it sounds like a good way to prepare for birth...how far in advance of giving birth would be a good time to start on a course of probiotics?