I had sex with a girl and the only part of my body that came in contact with her was my penis, could I get herpes outbreaks on my face?

Probably not but... It's possible, you've just exposed your entire body to whatever she has and visa versa. There are things worse than herpes. That being said, usually the herpes lesions on the face is a different from the genitals. For more see www.Peedoc.Com or follow @thepeedoc.