Hey Runbikeski - sooner is better than later for sure, If things are going well, now is the time. :-)
My first disclosure was not done well; we had been drinking and were hooking up when I stopped everything as I saw how the night was progressing. I told him that out of respect for him I needed to let him know that before any pants came off on anyone (lol....) I wanted to give him the choice of whether or not he wanted to progress once he knew my status. I said everything kind of quickly and he seemed ok, but I was so nervous that I was the one who had a change in attitude! I was embarrassed, I felt rejected before he even rejected me, and I just couldn't get the night back on track. It was NOT the way to disclose -- it was far too dramatic. We still hooked up, but no sex and then I was ghosted after a couple of weeks. He has since apologized for being an "asshole" as he put it. I was like, "Hey. We're all just trying to figure things out in our post-divorce 50s. We're good."
I got better at disclosure each time (hook up guys really don't care and I found that the younger generations are MUCH more ok with it because they're more educated about it) and the last time I did it, I said something like, "Hey, before we go further I want you to know that I have Herpes. It's a skin condition that can be passed on through sex if there is an active outbreak or if the person is not taking suppressive therapy. The good news for you is that I haven't had a symptom for more than 15 years and I have been taking daily suppressive therapy for fifteen years, so your chances of contracting it from me are around 1%-2% which is extremely low, but since it's not zero percent, I have a responsibility to tell you." Boom. Done. He kind of looked at me like, "Wow. Ok, thanks for telling me. I know that must have been difficult for you, but you know so much. So can we use a condom?" I told him that we were using a condom until HE got screened since I am 100% sure (through two tests) that I have no STDs. I asked him the last time he was screened and he said, "Umm....before I got married 20+ years ago" So I said, "Yes, we're using a condom to protect ME!" After screening and once we knew we were committed, we stopped using condoms. We don't touch at all when he has a cold sore, which he has been getting since childhood, so turns out we both have herpes!
Good luck to you and my advice is sooner rather than later. Say it with confidence; it's a skin condition, not a character flaw. The person who gave it to me without telling me has a character flaw. In my experience, guys were SO APPRECIATIVE of me telling them when I didn't have to -- I could have had unprotected sex with all of them and there was a 99% chance they wouldn't have ever known or gotten herpes, so they were grateful that I let them make the decision and they admired my honesty.