My advice for future, is that since you do have this sexual history, now, you should be more vigilant about your health and the way it may affect others — as well taking precautions to protect yourself, given what you’ve been through. I don’t think you should have unprotected sex without having a talk about your past and what you’ve been exposed to — without your knowing it — but nonetheless, exposed. This also protects you, as well as any partner. Plus, it will show that you’re thoughtful, responsible and including the other person in the decision to have unprotected sex given this past. And… it opens up the conversation to the other person’s history.
Difficult conversations can actually create intimacy and bring couples closer together.