gbs +I tested positive at around 25 weeks, which I understand is a pointless time to test, but anyway, my plan (homebirth) was to wait and see if my water broke and/or watch for fever, and then decide. My water didn't break until just before the birth, so it wasn't an issue. I didn't have any antibiotics and to date, we are both just fine. Also, my midwife had me eating a lot of onion and garlic for the antibacterial properties. Good luck to you.