Is there anything else it could be?

Realy worried and nearly sure it is herpes. But is there anything else it could be? I have one crater like sore on my mons pubis I had recently shaved and thought it was an ingrown hair and did pluck 2 small hairs from either in it or around im not too sure. I never seen a blister or anything. It does have a yellow look to it. It did not hurt untill I squeezed it. I remember having something similar before but my blood test was negative 11 weeks later. I did have sex 3 weeks ago but trust this person..no other symptoms no major outbreak and nothing on the actual genitals.

How do I add pic?

How do I add pic?

you might have to do it on a computer