Dermatology Questions? Ask an Online Dermatologist.
Thank you for your question.
The chances of this being herpes is very low and the reason why I say that is because herpes would usually present with multiple small ulcers and not just one ulcer like what you are having.
Since this is still a fresh wound, I would like that this should heal up properly before having unprotected sex as that can affect the healing of this wound.
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Then there is a possibility that this could be herpes.
I would not recommend unprotected sex until this clears up or heals up.
You can get a swab now which would be much quicker than waiting for that long.