So instead of waiting for AF, I tested yesterday evening at 10dpo. I think it was positive (top test) - the test line came up in timeframe.
This morning I tested with SMU (bottom test). I only had a small wee but the control line is there so it was obviously enough and I can't see a test line?
(I'm new to this POAS malarkey as I found out I was pregnant with DD years ago via a blood test.)
Has this happened to anyone else? These are not "early" tests and you're meant to use from first day of missed period so I'm not sure if they're invalid anyway!