Positive???

So this line came up before the control like appeared. I sat there for 3 minutes like directions say and the line is still their. Now I know there is a chance of Evaps with blue dye, but I have taken these in the past and have never had this line. Now tricky part is I also saved the same urine and did a frer and it was negative. Tomorrow will be the day AF should arrive. Has anyone had this before? And was truly pregnant?