Hi ladies. Back in August, had this test and a faint, broken line came up. I did other tests and all negative. I stashed it away and forgot about it. This was back in August. Have since had a period every month. Was tidying the bathroom and found this in the cupboard and the line has gone even darker. Was it likely a chemical? Or evap? Been trying every month since and feel like I need to know what went on for my own peace of mind.