I have group b strep should i get antibiotics?

Ignore it: Group B strep is a periodic visitor to the digestive tract and at any given time 30% of women may have it show up on a vaginal swab. Except for it's well known nasty habit of hurting newborns & occasionally causing urinary tract infections it can be just a benign hitchhiker in your system. Unless you have urinary symptoms or are in the final weeks of pregnancy, I would ignore the germ.