I had a VDRL test at 6 weeks and 2 months after the possible risk behaviour. Both were negative. I was told that at 2 months the test result is definite. Is this true? Can I trust the negative test results or should I have another test? I took HIV at 4 months and chlamydia and gonorrea at 1 month, these were also all negative. I'm just a bot worried about the sifilis if 2 months was enough.