ive had negative results the 6, 13 and 15th week mark. the person i last had sex with tested negative also 10 weeks after we last had sex. im still scared and nervous for i tested positive or syphilis when i got tested at the 6 week mark while she tested negative for syphilis. my question is for anyone with testing experience, for example someone who works at a testing clinic. would you advise me to restest past my 15 week result?