Common germ. This is a germ commonly found in the GI tract and within the genital tract of females in 20-30% at any given time. It is occasionally linked to UTI's in women, and can cause a devastating sepsis/ pneumonia in a newborn born with it. Unless this was a clean catch & you have UTI symptoms I would not consider it a problem.
Very common. Gbs is common and generally doesn't cause health problems in adults, but could cause serious infections in newborns which is why we test for it. If found, we simply treat the mother with antibiotics prior to or during delivery and most problems can be avoided.