I'm a horrible mother

I'm terrified that my son will look like his father. His dad is... To put it nicely, less attractive in the face. I really have not been on good terms with the father and I'm scared that I'm going to have trouble getting past my son's face if he looks like his father. I know it sounds awful. I love my baby and I want to love his face and call him adorable but what if he ISN'T? I know 2d ultrasounds are difficult to go off of. He could look completely different but I'm really nervous about this.