When the ovulation test detects a surge of oestrogen levels, it will notify you that you could be going through a highly fertile period, which can last for a few days.

To achieve these results, this home ovulation testing kit employs a rapid "sandwich" assay which incorporates two distinct antibodies to detect two separate antigenic sites on the LH molecule: the αLH site and βLH site. The clear digital display gives you a Clearblue smiley face when it identifies your best days to get pregnant. By accurately tracking 2 key fertility hormones, estrogen and luteinising hormone, it identifies 2 peak fertility days, like all other ovulation tests, but also additional high fertility days before that.

Unlike basal body temperature (BBT) charting, ovulation predictor kits detect the rise in luteinisning hormone (LH) that rises prior to ovulation to accurately detect the days before, and not after ovulation. For your High fertility results to be reliable it is important to only test once a day using the urine after your longest sleep. Because your partner’s sperm can survive in your body for up to 5 days, you can actually become pregnant by having intercourse during the days leading up to ovulation. You and your partner are ready and waiting for the pitter patter of tiny feet to enter your lives and turn your world upside down. We respect that many of our products are of a sensitive nature - this is why we take every step to keep your purchases private.

A ‘blank circle’ symbolises a ‘No LH Surge’ result or a ‘smiley face’ indicating that the LH surge has been detected. This means you have more opportunities to get pregnant - at least twice as many as with any other ovulation test*. The Clearblue Digital Pregnancy Test with weeks indicator is 93% accurate at detecting how many weeks when tested using your first urine of the day.When your LH surge is first detected, the test will display a static smiley face and this will continue to be displayed constantly for 48 hours, indicating your 2 most fertile days. After your first day of High Fertility is displayed, and the test starts looking for your LH surge, you can test more frequently if you would like to, but avoid excess fluid intake before testing.

The 103 third parties who use cookies on this service do so for their purposes of displaying and measuring personalized ads, generating audience insights, and developing and improving products. Just keep reading to find out how to use your Clearblue tests and how to read your test results when you’re done!You will need to know your usual cycle length before you start, so that you ensure you test at the right time. A 'flashing smiley face' means you already have a high chance of conceiving today and that your two most fertile days will soon be here. 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. By accurately tracking 2 key fertility hormones, estrogen and luteinising hormone, this ovulation test not only identifies 2 peak fertility days, but also additional high fertility days before that.

For more information on this product or answers to your questions, our Careline advisors are available for you 07:00 – 15:00 hrs Mon-Fri, excluding Bank Holidays. Clearblue digital ovulation advanced digital test with dual hormone indicator detects the rise in your urine of two fertility hormones Estrogen and Leutinising hormone (LH). Clearblue Digital Ovulation Test is the most effective ovulation test in telling you your best 2 days to conceive naturally. It shows your fertility information on the easy to use touch screen as well as summarizing up to 6 cycles data on one screen for easy comparison. Have sex on any or all of your high and peak fertile days to maximize your chances of getting pregnant naturally.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. 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. Always read the manufacturers instructions for any medication that you are taking before doing a test.