I thought I'd post another topic as I obsess over my conundrum today. I know I should just test tomorrow but I was curious on your thoughts. Had a very, very faint possible line on a dollar store test today, so I tested using first response digital gold a little later with undiluted urine (I held it and drank nothing for a while)..it said "YES+"...so yay! Until I then bought a Clear Blue advanced digital with weeks estimator and it came back "not pregnant".....holy rollercoaster of emotions, right? So what are your thoughts. I've heard first response is just more sensitive in general but below you can see the first two are the positive first response tests (outside and the inside strip), the last is the clear blue "apparently negative" strip