Audiogram An audiogram is a graph that shows the audible threshold for standardized frequencies as measured by an audiometer. The Y axis represents intensity measured in decibels and the X axis represents frequency measured in hertz. The threshold of hearing is plotted relative to a standardised curve that represents 'normal' hearing, in dB(HL).
Test every 12 hours not every 24 hours. The perfect time for sexual intercourse is within 12-24 hours prior to the ovulation predictor FIRST turning positive. Especially if you test only once a day. This may sound like a surprise, but making love only after first getting a positive OPK may not get you pregnant at all.
Baby_on_Board 22/09/2010 at 20:42. PM. Hi Laura take a look at my pics, you will always get a faint +ve on an opk as the hormone is in your system constantly but rises significantly before ov - hence the test line gest darker before you ov indicating that there is more hormone. CD13 and 14 are the +ve tests.