Never caught one before as never tested any other time than am and rather puzzled now as to how long till ovulation?!
I had ds without a detectable surge and not caught any in the last couple of cycles though may have missed the crucial time.
I've tested 3 times a day the last two days which has caught it. So 5pm and 8:30 pm are positive (cheapies!)
Question - if it takes a few hours to show up does that mean earliest ovulation is 12 hours or is it 24 from now? And how long to keep trying for? Google confused me!