By 6 weeks, 70% will test positive for hsv2. Given that your encounter was largely protected, you haven't had any symptoms, your current partner hasn't either, I wouldn't worry at all.
Getting hsv2 from a one time encounter is pretty unlikely. Given that there is a decent chance of getting a false positive if you retest, and unwinding that mess can take literal months, I'd say you're fine to move on from this without worry. If it were me, that's what I'd do. :)