Pictures Of Herpes Out Breaks Is It Herpes?

Is it herpes? - pictures of herpes out breaks

I am 18 years old and men. There are about 2 weeks had unprotected anal sex with a male partner. He did not know ejaculate in me, my penis instead of a lubricant. Fast forward to about a couple of days: I have an ulcer disappeared, and seem to burst with acne. Acne is red, very common (and not in groups) in my hips and lower back, perhaps in my buttocks. I wonder if this is herpes, acne, because it lacks the white head of pus, the majority of acne. No itching or pain. Also, most of the pictures of herpes are usually round rather than grouped as my "wounds", but also, I never had acne on my thigh and has a white head, and not displayed. Is this herpes?