In this movie you can learn how to use (LH) ovulation test strip at home
A pregnancy begins with conception. Successful fertilization is most likely during a 24 hour period one to three days following the LH surge. Since this ovulation "window" only opens once per month, and for only about 24 hours, being able to predict fertility it is very helpful when trying to become pregnant. Therefore, you should have intercourse during the one to three day period following the LH surge to increase chances of conception.
How to Use
Immerse the strip into the urine with the arrow end pointing towards the urine. Do not immerse past the "Mark" line. Take the strip out after 20seconds and lay the strip flat on a clean, dry, non-absorbent surface (e.g., mouth of the urine container). Wait for colored bands to appear. Depending on the concentration of LH in the test specimen, positive results may be observed in as short as 40 seconds. However, to confirm negative results, the complete reaction time (10 minutes) is required. Do not read results after 30 minutes.