Don't concern yourself with what generation a test is just test at the proper time to obtain a conclusive result.
yeah, unprotect sex, for the duo test, normally stand for 4th genration or still can get duo test from 2th genration
All tests are conclusive at 3 months post exposure. Did you have an exposure and a need to test?
how is the Accuracy after three month, is this 4th Generation or 3th generation