 [ Symptoms ] all my test were negative i just wanted to know if they are acurate after 13 days especially for hiv  has sex with another male and used condoms none broke unprotected oral sex tho i got my hiv and other std screens and everythig was negative i just wanted to know how effective these were after 13 days [ Disease ] hi yes you can get a false negative and a false positive so just go get retested at a stdgum clinic the staff thee are very good at there job and there you can ask all the questions you want and they do not discriminate good luck