I was late with period last month due to a lot of stress but got it late again this month and did like 6 cheap tests most came back negative apart from a couple after 5 mins a very vague second line appeared maybe a evap line?il post pics of them ,seen nurse earlier on who did a test same thing happened 1 line and then a very faint line but she said to dismiss that and proceed with it being negative so did one last set of tests to put mind at rest and now these clearblue are came up this help ??