I believe that testing positive for Strep B just means that you will have to have antibiotics when you give birth. I could be wrong, but I think that's what my doctor said. As for dialation, I wouldn't worry too much about that yet, you have plenty of time to dialate. If you don't, they may have to induce. But I don't think you have anything to worry about at this point. Maybe our babies will be born together! How exciting!!