I tested + for syphilis, but 2nd test was - . tested positive for hiv, final test was - . with that being said. i had gotten 2 shots right before the blood draw, one for tetanus and the other for hpv. could that have had an effect on the tests?

Vaccinations would not affect the results. However, you should see a doctor if a syphilis test was abnormal, even if repeat test was normal. Safe sex: https://www.hopkinsmedicine.org/health/wellness-and-prevention/safer-sex-guidelines

No. you are young -pl take better care of yourself than to test positive for such conditions. Good luck.

False positive RPR for syphilis has been seen post vaccination https://www.cdc.gov/std/FDA-alert-12-20-2021.pdf Sam with HIV testing vaccination can affect results. https://www.medicalnewstoday.com/articles/cause-of-false-positive-hiv-results