hello guys I'm new here and I have some questions about my pregnancy tests. I took a one -step pregnancy test this evening at 8pm which tests 5 days before your missed period .My period is suppose to start Dec 13. It is a blue dye test,but I don't believe in those false postive evaperation lines, I have proof. 1st off I used those types before and wen I wasn't pregnant it will show a accurate negative. But before I get to my proof about blue dye pregnancy test ,I also took a pink dye pregnancy test which is 1st response, tests up to 5 to 6 days before or on your next period and it was a big fat negative,but I also took that around 11 pm tonight. I was so pissed lol so I went to walmart and got the same blue dye one-step pregnancy test which came with two and I also bought a ept digital test which shows results 5 days before ur missed period. So i took the one-step pregnancy test (blue dye) and it was a big fat negative, there were no faint lines or evaperation line ,I even held it up to the light and nothing . I was like wtf lol. I also took that test around 11 pm as well. So my question is how? why? Is it because your hcg levels change through out the day and night? It's almost midnight here. like I said I tested at 8 pm tonight and had a faint positive(which means your hcg levels are low)and I re took 2 test at 11 pm at night which were negative. any thoughts?🤔 so remember guys using the blue dye pregnancy test and u get a faint positive line doesn't mean it's a evaperation line it means ur pregnant but with low hcg levels. and maybe it depends on the type of blue dye pregnancy test u get that gives u a false positive. I recommend getting one-step pregnancy test .