bv in pregnancy

LoettaCollins
Has anybody suffered with bacterial vaginosis throughout pregnancy? I have had it on and off over the years. Antibiotics clear it but don't prevent it and I always end up using natural yogurt and tea tree in my bath water. Does anybody know if this is safe to carry on? 
I've also read about bv causing miscarriages and pre term births. Anybody suffered with bv during pregnancy and gone on to have healthy babies? I'm worried! X