Because of these differences in follicular phase length, the day of the LH surge varies from woman to woman and from cycle to cycle, making it more challenging to accurately detect the timing of peak fertility. The result is shown on a digital display: a ‘blank circle’ is a ‘No LH Surge’ result; a ‘smiley face’ indicates that the LH surge has been detected.

The day on which you test varies based on your cycle length, so be sure to check the enclosed table of information to know when to use the ovulation test. More women obtain the same result as a laboratory professional when reading Clearblue Digital Ovulation Test than when reading other ovulation tests. It is important that you haven’t urinated for at least 4 hours before doing the test, because this ensures that the hormone level in your urine is concentrated enough for the test to detect. Have intercourse on high and peak fertility days to maximise your chances of getting pregnant naturally.But cycles are variable and so is the timing of ovulation, which means that 1 in 2 women could be trying to conceive at the wrong time of the cycle1. For your High fertility results to be reliable it is important to only test once a day using the urine after your longest sleep. Take the guesswork out of starting a family by correctly working out when you’re ovulating with Clearblue Digital Ovulation Test.

Clearblue Digital Ovulation Tests detect this LH surge, and therefore maximise her chances of conceiving. Have sex on any or all of your high and peak fertile days to maximize your chances of getting pregnant naturally. This means you have more opportunities to get pregnant - at least twice as many as with any other ovulation test (1).

Unlike other ovulation tests which track LH only, Clearblue Advanced also detects estrogen which rises prior to the LH surge to detect more fertile days. I'm still getting to grips with when to test, but it's picked up high results easily, just working on timing my peak testing. The result of the tests can only be read on the monitor and cannot be worked out by any lines you might see on the test. It may not be reproduced in any way whatsoever without Ocado Limited's prior consent, nor without due acknowledgement. If you are unable to do this or would simply rather not, then you could collect a small sample of your urine in a clean, dry container (not included) and then dip the test into it for 15 seconds.

Hormone levels and cycle length vary from one woman to another and from cycle to cycle in the same woman. As it is not possible to become pregnant outside of your fertile 2-3 days each cycle, which is around ovulation.The Pregnancy Test Sticks from this pack can only be used with the Clearblue Advanced Fertility Monitor (sold separately). If you have ovulation test sticks left after detecting your first LH surge then you can use them with the same test holder to identify your fertile days next cycle, if you're not already pregnant. If you don’t see Peak Fertility for 3 consecutive cycles we recommend you discuss this with your doctor. NEW** Clearblue Advanced Digital Ovulation Tests with Dual Hormone Indicator - Pack of 20 About this item From the manufacturer What are the benefits of the Dual Hormone Indicator?