Hello DOCTOR Myself N My Wife Both Was Vdrl Reactive

Hello DOCTOR
Myself n my wife both was vdrl reactive in may 2013 and july 2013 respectively. My Vdrl test qas 1:16 initially.. doc prescribed antibiotics which fallas result to 1:8. We both then
Treated with Benzatha. Penicillin 2.8 million IM in sept 2013(wife given extra done). After that fourfold declination in titers. Since Aug 2013 we had done blood tests for vdrl (dilution methos) in columbia asia as well Apollo clinic, all are non reactive since dec 2013. Recently I had vdrl test again on 2June 2015( done by using ASPEN kit) it shows reactive. Den I went to another hospital on 4june where they did slide flocculation methos which is non reactive. I am confused between this results. I am married n plan for baby.
Please giude us for having healty life for my wife,me and our baby. We had done latest Hiv I & II testing for both on 15 jan 2015 which is non reactive. Privious HIV tests are also non reactive.