Do I have herpes?

Recently had unprotected sex about 2 weeks ago, ever since i have noticed a small red mark on my penis shalf, i also had a small coldsore on my cheek at the time, however no oral sex took place. She was very dry so i dont know if it is a small friction mark. It doesnt itch or hurt and isnt a blister or lesion, just a red mark. Could it be herpes? i know straight away if i am getting a coldsore on my face but this doesnt feel anything like that

it dosnt sound like herpes