Okay thanks, still going tomorrow forsure
Get tested anyway. If you've never been tested you'll never know.
I concur with shandy, plus the penis head is much rarer than the shaft to have a single lesion. It may well be an irritation from rubbing or a patch of fungus.
An initial outbreak usually occurs 5-7 days after sex and it's usually multiple blisters and very painful.
Also, the last time I had sex was maybe over about a month and a half ago, possibly 2 months is that too long for symptoms?