Wow, never heard the possible organic correlation before, but it could explain my scenario, as I consumed almost a complete organic diet with DS, and was so disappointed to come out GBS+. Also allergic to PCN, I could only get Clindamycin which was not the best for treatment. At the end, DS still ended up in the NICU with Ampicillin and Gentamycin, still unclear what kind of infection his lungs had. As in your case, my water had also broken, about 12 hours before labor, and, it being a teaching hospital, I doubt there was anybody left who did not do an internal exam on me!!! I am still eating almost all organic this time around, and am dreading the GBS test result this time. However, my OB had told me that once positive, for future pregnancies they automatically recommend abx. Am 50-50 as to what to do this time around, wanting to attempt vbac, read natural remedies for GBS as well, but as you said, the pros and cons, maybe will go for it. Last thing, both DS and I suffered one month from what looked like cdiff stools, not painful but not fun either.
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First miracle: very lively DS November 2008
Expecting another little miracle January 2011