Testing + group b strep and natural delivery

Asyia • ♡Malasyia Frances Thomas♥ Shermall Jermel Parker Jr 👑my sweet angel in heaven Mommy loves you∆#MALLY🤴🏾

With my last pregnancy I tested + this go around I haven’t been tested yet but if I have a I medicated natural birth meaning no pitocin and epidural will I still be administered the antibiotics and how long during labor will I be given the Meds?