were are you getting that number? and why are you reading test 30 minutes later? I used these fast for nearly 4 years while i TTC and got one evap during the time limit ever. as for 30 mites later, many test will do that, thats why they say not to look at them after 10 minutes!

I had a pink line in the "test" window just the other day WITHIN the time limit!! We are done having kids so it scared me so much I went to take a blood test and it came back negative. I also used them for years when we were TTCing and NEVER had an evap line and they were always right!! It must be a recent bad batch. I showed the picture to a ton of Facebook ladies and they all agreed it was positive, but blood showed negative!!