Strep b and pregnancy

[sugarbuttys]

I remembered i was told through having tests done a while ago that i had strep b in the canal and if i wasnt planning on having any more kids it wouldnt be a worry.... at the time we were quite happy with the two we had so a little shock to find out were expecting baby #3
Having this in the canal, is it possible for it to dissapear as it was quite some time ago or is it once its there its there for life... i didnt have it with my first two in fact was only detected say a year ago. I read a story of it growing during pregnancy? Is this right?