I thought there was no way this blue dye was wrong...I had 2 blue dyes on 2 different days come up with very thick, blue lines within a minute. No need to edit it or anything....it was there. I was over the moon as it was one year to the day yesterday that I had my first miscarriage. But my First Response kicked me back to reality with a BFN. All pictures between 2-3 mins with FMU.