Herpes can appear any where from 2 weeks to years after being exposed. You might have some in-grown hairs. When I had that I used salicylic acid and put it on the areas that appeared to be shaving bumps. The first herpes outbreak is very painful, and the bumps would turn into blisters. You can always get checked by your doctor, to put your mind at ease.
I was browing through he forums, and in the "ask a doctor forum" one of the dctor's answered a questiosn very similar to this. Yo might want to take a look at it, and healso said it probable wasn't herpes, but a hair follicle infection.