Hello, i havent had AF since 18th march and i have done 2 HPT all BFN. i decided to go to the doctors for a blood test but the receptionist said standard procedure was a urine test. This also came back BFN. Could there be any chance the urine test is wrong and a blood test prove different??? There is a small hope in the back of my mind that i am pregnant because AF is so late and i dont remember been so late before. Has anyone else has same experiences? Thanks Amy.