Scared

Went to the doctor yesterday and my test came back positive about something about and infection and I have to have antibiotics when it's time for delivery I'm so scared now and don't know what to do. I've never had any kind of infection or STD's so I'm worried where did this come from.. Does anyone have any answers or been thru this before please give me some advice I'm so scared I just want my baby to be healthy and beautiful no problems. I've prayed about and put it in Gods hands 🙌🏾