Hello,
Commonly in women Chlamydia is asymptomatic. When symptoms occur, vaginal discharge, poorly differentiated abdominal pain, or lower abdominal pain are the most frequent. A positive Chlamydia IgG reflects prior chlamydia exposure, not necessarily an active infection. A variety of studies have shown over time that in some women with + antibody titers can increase, decrease or stay relatively the same.
So the negative screening by your ob/gyn reflects the fact you have no active Chlamydia infection.
Having + titers suggests you may be at risk for have tubal factor infertility (scarring of the tubes). If you have had problems conceiving this would be helpful information for a fertility specialist. A definitve test to determine tubal blockage is an hysterosalpingogram in which radio opaque dye is injected into the uterus and realtime x-rays are taken (fluoroscopy) to observe for spillage of the dye out of the tubes.
Follow up with your ob/gyn and discuss these issues further.
Best regards,
Dr. Downing