Temp had been steady after ovulation, but has now dipped 2 days before period would be due (36.48 when it had been between 36.85-36.94) Does this count me out? I didn't sleep, and had less than the 3 hours you're advised before taking it but don't know if I'm clutching at straws. Had a static smiley on day 13, so ov would have been day 14 or 15 I think...