Thanks Jas, Anthonysmum and Alisia.. its great to get some feedback.

AF due around today and no sign as yet (LP varies from 9-11 days)
HPT yesterday was BFN but when a looked at it later there was a definite second coloured line... thought prob an evaporation line. Did a different brand HPT this am and it was a BFN
Have to have a blood test today for progesterone and was thinking of asking them to add in a bHCG but am a little scared of a more definitive BFN. Does anyone know if a blood test at 11 DPO is still sometimes too early for a postitive result or would a blood BFN be pretty accurate?