Sorry to say that my faint BFP was followed by my late, slightly heavier than usual period a couple of days later. I genuinely believe that I was pregnant (my breasts were very tender and swollen and I just generally felt different) but it didn't "stick".

The very next month I got pregnant with DS and this time with no symptoms at all, I took the leftover test from the month before after my period was 4 days late, just to rule pregnancy out. I was busy getting ready for work at the same time and I nearly fell over when I strolled back into the bathroom to see a very definite, dark BFP.