You're sweet! I'm not sure what my online time will look like once I have 3 kiddos to look after! But I really enjoy helping others with their charts, so hopefully I'll be around a bit. Maybe not quite so much, though...
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Oops, I read that wrong about what test you bought! I thought you said you did get the digi. 
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For early testing purposes, pink dye and the two line tests have the best track record not only for early results, but clear results. Blue dye tests to lead to more evap problems early on and the +/- variety are plagued with interpretation issues. You can read about the POAS +/- test experiment here. You can also read up on the "latest POAS news" where she writes about more current issues and updates in red font what has happened. This includes mention of your particular test be, as she puts it, "crappy" since it delivers a poor result. But the +/- variety has always had a sensitivity of 25 as far as I know, so no confusion there.
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It has been my experience with my own peeing on a stick career and listening to reports from others that these issues are mostly with early testing.  Once you're far enough along, HPT's should give very clear pregnant result in general, but as you'll see, even the not pregnant results can be difficult to see on the +/- variety!
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