Neither expire til 2012. I am also aware of an extremely faint line being negative.

The test strip I ordered online and used March 5th and this morning (after the other showed what i believed to be a positive test) was clearly negative. A second line immediately appeared, was there 5 mins later, 10 mins later, and an hr later.

The one I picked up at Meijer and used this morning, i waited til the circle filled and said "ready to read." I am pretty sure I didnt see a line. I did use another meijer test for 2nd void today and got an extremely faint line. Maybe I just didnt look hard enough at the meijer test this morning. It is afterall the only one of the 4 that I may have failed. I guess I will just test myself tomorrow using both test kits and see what happens.

Thanks