So this past week I've been getting faint faint lines on first response tests with in the 3-5 min mark and then a few days later evaping out?? I thought you couldnt see evap lines if the test is still in the time frame and not dry so why am I getting faint positives but they are completely evaping out?? I have 8 test that did this..has anyone else experienced this? I never have, I never get faint positives within the time frame then they evap to a gray line..so weird. I still haven't made a doctor's appointment, I'm waiting till the end of this week to see if I'm still getting these then I'll make an appt. Oh and I get nothing on any cheapy strips I've been taking. Just would love some thoughts and experiences! :)