Advanced Digital Ovulation Test: Typically Identifies 4 Or ... - Clearblue

Advanced DigitalOvulation Test See how to use Buy now Double your chances of getting pregnant1

The Clearblue® Advanced Digital Ovulation Test typically identifies 4 or more fertile days2 in each cycle. It tracks 2 key fertility hormones to identify your High AND Peak fertile days, so you can plan ahead and have more opportunities to get pregnant.

Key benefits

Clear digital results

No more guesswork with Clearblue® Advanced Digital Ovulation Test. The holder will show a smiley face if it's one of your fertile days. On High Fertility days (Flashing smiley) you have an increased chance of getting pregnant. On Peak Fertility days (Static smiley) you have the best chance of getting pregnant.

Identify your HIGH & PEAK fertile days

Thanks to our 2 hormone detection, the Clearblue® Advanced Digital Ovulation Test typically identifies 4 or more fertile days2. Giving you more opportunities to get pregnant!

Choose Clearblue® for accuracy

Use Clearblue® Advanced Digital Ovulation Test to accurately detect your Peak Fertility versus calendar methods3.

Detects 2 Fertility hormones

Clearblue® Advanced Digital Ovulation Test detects 2 key fertility hormones: LH & Estrogen versus LH only tests.

Try our FREE Clearblue® Period Tracker app

Log your ovulation test results, and track your cycles and symptoms. See predictions for your peak fertility days and period due date based on your cycle length.

App images for illustration purposes only.

#1 OB-GYN recommended

When it comes to recommending an ovulation test or fertility monitor brand, Clearblue® is the number 1 choice for OB-GYNs in the US. Also voted Most Trusted Brand of the Year 2025 by American Shoppers. Multi-year winner.

Over 99% accurate

Clearblue® Advanced Digital Ovulation Test is over 99% accurate at detecting the LH surge. Trust Clearblue®, an international brand with 40 years clinical research and development experience.

The Clearblue® Adaptive Algorithm adjusts to your unique hormone level

Designed to detect low LH surges even lower than 25mIU/ml. This advanced technology is designed to detect more LH surges than without the Adaptive Algorithm, helping you optimize your chances of conception.

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What do other people think?

Eloisa

"The tests were fantastic, extremely accurate and quick and easy to use. I have recommended the product to all of my friends. The same for the pregnancy test, extremely accurate and very simple to use. I do not have enough words to explain how grateful I am to Clearblue®. It made the whole conceiving process easier and will definitely recommend to all couples trying for a baby."

Leaflet

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Video

How to use Clearblue® Advanced Digital Ovulation Test

1. Before testing

• Please always read the instructions on pack and in the leaflet carefully before use.
• Always test using the first urine after your longest sleep.
• You need to know your usual cycle length before you start to ensure you test at the right time to find your high and peak fertile days.
• The day your period starts (first day of full bleeding) is Day 1. Your cycle length is the total number of days from Day 1 up to and including the day before your next period starts.
• Once you know your cycle length, use the table below to find out when to start testing:

Your cycle length in days	21 or less	22	23	24	25	26	27	28	29	30	31	32	33	34	35	36	37	38	39	40	41 or more
Start testing on the day under your cycle length	5	6	6	6	7	7	7	8	9	10	11	12	13	14	15	16	17	18	19	20	20 days before your next period

2. Get ready to test

- Remove a test stick from its foil wrapper.

- Remove the cap from the test stick.

- Align the purple arrow on the ovulation test stick with the arrow on the test holder.

- Insert the test stick until it clicks into place.

- The ovulation test will switch on after you have inserted the test stick correctly.

- If it's the first time you have used the test holder, the 'new cycle' symbols will flash briefly.

- Wait for the 'test ready' symbol to appear and test immediately.

3. Take the test

- Place the absorbent tip pointing downwards in your urine stream for 3 seconds.- Or collect a sample of your urine in a clean, dry container. Dip the sampler in the urine for 15 seconds.- The 'test ready' symbol will start flashing after a minute to show the test is working.

4. Wait for 5 minutes

- Within 1 minute you will see that the test is working as the test ready symbol will start to flash.

- Keep the sampler pointing downwards or lay the test flat.

- Throughout testing never hold the test with the absorbent tip pointing upwards. - Your result will appear on the display after 5 minutes.

5. Read your results

Low Fertility – a clear circle

- A clear circle indicates low fertility. Having intercourse today is just for fun as it is unlikely, but not impossible, that you will become pregnant. Your result will be displayed for 8 minutes. - Do not test again today. Test again tomorrow using the first urine after your longest sleep - Note: The test is looking for the rise in estrogen that will indicate you have reached High Fertility, for your High Fertility results to be reliable it’s important to test only once a day.

High Fertility - a flashing smiley face

- When the test first detects a rise in your level of estrogen it will display High Fertility (a flashing smiley face). Your result will be displayed for 8 minutes. - In the following days the test will continue to display High Fertility whilst it looks for your LH surge. Continue to test daily to find your LH surge. - After your first day of High Fertility is displayed you can test more than once a day if you would like to but avoid excess fluid intake before testing.

If you see more than 9 High Fertility days, see FAQs 2 and 4.

Peak Fertility - A static smiley face is constantly displayed for 48 hours after it first appears

You cannot do another test while Peak Fertility is shown, as the holder will not be able to read it.

6. After the test

- Eject your test stick right away and dispose of it in your normal household waste.

FAQs

My Peak Fertility (constant smiley face) won’t go away, is the test broken?

• 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.
• Don’t remove the batteries to try to reset the holder, if you do this you will break the holder and you won’t be able to use it again

I’ve done all the tests as instructed, but have not seen High Fertility. What should I do?

• There are enough test sticks in this pack for most women with regular cycles to detect their High and Peak Fertility. It is possible that if your cycle length is long or it varies, you may need to do more tests. You should use the same holder with test sticks from a new pack.
• Some women may not see High Fertility days but see Peak Fertility days only. This may be because the estrogen level is not high enough to be detected by the test, or they started testing too late. Peak Fertility results can still be relied upon and having sex on these days maximises your chance of getting pregnant

I’ve done the tests as instructed and I did not see exactly 4 fertile days, what does this mean?

• Hormone levels and cycle length vary from one woman to another and from cycle to cycle in the same woman. The number of fertile days displayed each cycle will be personal to you and some women will have more, or less than 4. In a study of 87 women, this is what we observed:

Number of High Fertility days before Peak Fertility	Number of Women
0-4	57 (66%)
5-9	22 (25%)
10+	1 (1%)
No Peak Fertility detected after High Fertility	7 (8%)
TOTAL	87 (100%)

I have now seen High Fertility results for a long time, surely I can’t be fertile all this time?

• When the test detects a rise in your level of estrogen it displays High Fertility (flashing smiley face), and will continue to display High Fertility in the following days whilst it looks for your LH surge.
• If you start testing too early in your cycle or too late (after the LH surge has occurred) then you may see a lot of High Fertility days.
• If you started testing on the correct day for your usual cycle length and you see 9 or more days of High Fertility, it is unlikely that you will see Peak Fertility in this cycle. You may wish to stop testing for this cycle and save any remaining tests for next cycle.
• Occasionally some women have an LH surge that is too low for the test to detect, or they do not ovulate during a cycle and in this case they may see lots of High Fertility days but no Peak Fertility. This is not unusual and may happen in approximately 8% of cycles.
• If you don’t see Peak Fertility for 3 consecutive cycles we recommend you discuss this with your doctor.
• Remember, your results are personal to you and you may see more than 2 High Fertility days – see table in Q3.

Can I test more than once a day?

For your High fertility results to be reliable it is important to only test once a day using the urine after your longest sleep.

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.

Does the test start adapting to my unique cycle right from the first day of testing?

Yes, the test reads your individual hormone levels and on the first day you test in each cycle the level of estrogen will be identified. The test cannot display High Fertility on the first day you test as it needs to determine your baseline level. Subsequent tests use this baseline level and when a significant rise in estrogen is detected it will display High Fertility. The test will then display High Fertility until it detects the LH surge and Peak Fertility is displayed. If an LH surge is detected on the first day of testing, Peak Fertility will be displayed.

Can any medication or medical conditions affect the result?

Always read the manufacturer’s instructions for any medication that you are taking before doing a test.

Certain medical conditions and medications can give misleading results, for example:

• you are pregnant.
• you have recently been pregnant.
• you have reached the menopause.
• you have impaired liver or kidney function.
• you have polycystic ovarian syndrome.
• if you are taking fertility drugs containing luteinizing hormone or human Chorionic Gonadotrophin.
• you are taking antibiotics containing tetracyclines.
• some fertility treatments such as clomiphene citrate may give misleading High Fertility results. Peak Fertility results should be unaffected.

If you have recently been pregnant you should wait until you have had 2 natural menstrual cycles and note how long these are before using Clearblue® Advanced Digital Ovulation Test. Please check with your doctor if you are taking any medication or have any medical condition before planning a pregnancy.If you have a medically diagnosed fertility problem you should ask your doctor if Clearblue® Advanced Digital is suitable for you.

I have put in a new Clearblue® Advanced Digital Ovulation Test Stick and these symbols have flashed on the display. What does it mean?

This means that the holder is ready to use for the first time. It will also be displayed if you are testing after you have seen Peak Fertility or if you have not done a test for 3 or more days in a row. If you have missed 3 or more tests and not seen Peak Fertility the holder will think you are testing for the first time. If you carry on testing it might not detect High or Peak Fertility. It is better to wait for your next cycle to start testing again.

My cycle length varies, when should I start testing using Clearblue® Advanced Digital Ovulation Test?

If your cycle length varies use the shortest cycle over the last 6 to work out when to start testing.

What if I missed testing with the first urine after my longest sleep?

You should test as soon as you can but avoid drinking a large amount of liquid beforehand. If you do not use the first urine after your longest sleep you may see unexpected High Fertility results so it is important that you remember to use the first urine after your longest sleep.

Can I buy more Clearblue® Advanced Digital Ovulation Test test sticks or use the holder with test sticks from any other product?

No. Test sticks are not available separately. You can only use test sticks for the Clearblue® Advanced Digital Ovulation Test with the holder.

How accurate is Clearblue® Advanced Digital Ovulation Test?

A laboratory test has shown the test to be over 99% accurate in detecting the LH surge (Peak Fertility).2

Ovulation

Digital Ovulation Test Fertility Monitor with Touch Screen Easy Ovulation Kit

Digital Ovulation Test: pinpoints your 2 most fertile days

In every cycle there are only a few days when a woman can conceive, so having sex on these days is very important if you are trying to get pregnant.

Maximize your chances of getting pregnant naturally

1. with Clearblue® Advanced Digital Ovulation Test in first cycle of use, vs not using ovulation tests.

2. In a study of 87 women, 4 or more fertile days were identified in 80% of cycles using actual cycle length.

3. Study of 101 women in the UK comparing a simple calendar method of conducting a test on LH surge day (2011).

4. 2 key fertility hormones (LH & Estrogen) vs 1 hormone (LH)

5. Voted most trusted Ovulation Test by American shoppers based on the 2025 BrandSpark® American Trust Study.

6. At detecting the LH surge.

7. The sensitivity of the LH detection in Clearblue® Advanced Digital Ovulation Test is 40mIU/ml measured against the Third International Standard for urinary LH and FSH for Bioassay (71/264).

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