Got off BC 2 month ago, no AF since then... had this test this morning (left side), looked after 2 minutes... then left to work... (didnt wait the 10 minutes) came back from work and looked again and i saw the FL on the 4th window.... dont know if it was there during the 10 minutes time frame or later... also, it a bit weird that theres only a line in the 4th and not in 1 to 3 windows... what do you think?