Well I caved a little early - yesterday and tested - BFN but as I was waiting for the result I read the instructions a bit more clearly for this test - a digital one that also predicts how many weeks pg you are (ClearBlue digital with conception indicator)- and read that if you have no idea when your period is due they recommend "testing not less than 19 days after the last time you had unprotected sex". So I guess that means I test with the other one next Tuesday to check which is about 19 days. (I'm not quite addicted to POAS syndrome but .... )

It took me a while (too early in the morning LOL) to work out that the instructions meant test at 19 days or later after BDing