Does this count as breaking the first precept?

Let’s say that my face was itchy but just before I scratch it, I just remember that there might be face mites living on my face and I might be killing them. And as I’m scratching my face, I keep thinking that I might be killing the face mites. My original intention was to scratch my face but if I think I might be killing the face mites but continue to scratch my face because it’s itchy then does that count as breaking the first precept?