I’m just not sure what this could be but we’ll know with the blot. The 12 weeks out is fine. the vast majority of people seroconvert way earlier than 12 weeks but a few can take that long to seroconvert, yes.
When you were using the creams, did you give them adequate time to work? Treatment for a fungal infection can take weeks to work.
This rash doesn’t sound at all like herpes to me and we know that damn supplemental test is deeply flawed in the way it is read. Please – give it time.