Clearblue Digital Ovulation Test is over 99% in pinpointing your 2 most fertile days so you can be confident that you are trying at the right time to maximise your chances of conceiving naturally. More accurate than calendar and temperature methods at predicting the most fertile days, the easy to use device measures the changes in level of a key fertility hormone - luteinising hormone (LH) and displays the results in an easy to read format. The LH surge occurs approximately 24-36 hours prior to the release of an egg from your ovaries (ovulation) so you are at your most fertile on this day and the day after.
The actual day the LH surge occurs varies from woman to woman and from one cycle to another, so to have the best chance of detecting your LH surge you need to know your usual cycle length. To work out your cycle length, count the day your period starts (first day of full menstrual flow) as day 1, and continue counting through to the day before your next period starts. The number of days is your cycle length. If your usual cycle length varies by more than 3 days then choose the shortest cycle you have had over the last 6 months to work out when to start testing.
If you wish to start testing without knowing your cycle length, it is recommended that you start testing on day 10, however, in this case it is possible you may miss your LH surge because you have started testing too late or you may need to start a new pack to continue testing.
Use the table below to work out the day you should start testing. If your cycle is more than 41 days, start testing 17 days before your next period.
Directions : When you are ready to test:
- You can test any time of the day, but it should be at about the same time each day (many women find it most convenient first thing in the morning).
- It is important that you have not urinated for at least 4 hours before testing, and you should avoid excessive fluid intake before testing.
- Remove the test stick from the foil wrapper. Use the test stick straight away. Before applying urine to the test stick it must be inserted into the test holder as per instructions below.
Remove the cap:
- Find the pink arrow on the test stick.
Assemble the test:
- Find the pink arrow on the test holder.
- Line up both pink arrows.
- Insert the test stick into the test holder until it clicks into place and the test ready symbol appears.
- Do not use until the test ready symbol appears.
- When the test ready symbol appears do the test straight away.
- If the test ready symbol does not appear OR if the symbol has disappeared eject the test stick and re-insert it carefully.
Do the test:
- With the test ready symbol showing on the display:
- EITHER test directly in your urine stream - place just the absorbent sampler, pointing downwards in your urine stream for 5-7 seconds. Take care not to get the test holder wet.
- OR test a sample of your urine collected in a clean, dry container. Dip just the absorbent sampler in your collected urine sample for 15 seconds.
See your result:
- Within 3 minutes the display will show your result.
- If your result is you have detected your LH surge and have reached your most fertile time. Make love at anytime during the next 48 hours to maximise your chances of becoming pregnant. There is no need to carry on testing during this cycle.
- If your result is you have not detected your LH surge. Test again tomorrow at the same time using a new test stick.
- Once you have read your result you MUST press the eject button and remove the test stick.
- The result of your test can only be read on the test holder display.
- You cannot determine your result from any lines that you see on the test stick.
- Your result will remain on the display for 8 minutes.
- If your test stick is still inserted and the display is now blank, eject the test stick and your result will re-appear for 2 minutes.
- Do not re-insert a used test stick.