I know the 4th gen test after 28 days is conclusion. I have type 2 diabetes and syphilis, my blood sugar has not been well controlled, and my syphilis has not been completely cured now. Do type 2 diabetes and syphilis affect the window period?
NO.
NOTHING will delay the conclusiveness of your test result except chemotherapy for cancer, and even then it is not certain that results would be delayed.