Be very careful, you are risking your life. That's good news, but don't let that possibility encourage you to have unprotected sex. Of course, other partners will just not tell you the truth even if they know they have been exposed or suspicion they have a disease. True, oral sex involves less risk of HIV but you still run the risk of herpes, gonorrhea, chlamydia, HPV, and maybe other diseases. Chlamydia can be cured easily with antibiotics but if untreated it can make you sterile and infertile.
Untreated gonorrhea can produce the same results.