Can having an Anterior Placenta kill you?

I had a ultrasound and my ultrasound tech goes “that doesn’t look good.” I asked her what she meant? She goes “it can kill you.” Then walked out to get the doctor. The doctor didn’t think anything by it and said we would monitor it to make sure it wasn’t by my cervix. I am like freaking out right now! What does this mean? Am I going to die during birth? I am sorta scared.