The best ovulation test strips and kits to buy today (2024)

Clearblue Advanced Digital Ovulation Test Kit
Fairhaven Health Fertile-Focus Ovulation Microscope
Femometer Ovulation Test Strips Kit
Boots Ovulation Test Kit
30 x One Step Ovulation Strips
Clearblue Digital Ovulation Test Kit - 20 tests
Ovaview sensitive ovulation/fertility tests kit
MomMed 80 ovulation test Strips
Wondfo ovulation tests strips

While the can work out when you're ovulating based on your last period,ovulation tests detect your most fertile window by using yoururine or saliva. Brands like Clearblue lead the way on the market, with easy-to-use test kits that are able to identify fouror more fertile days when you are ovulating to help you boost your chances of getting pregnant.

Ovulation prediction kits (commonly referred to as an OPK)mainly come in the form of urine tests, but saliva test kits are also available (although sometimes less effective). Here's everything you need to know about how ovulation prediction kits work and which brands are the best value for money.

Our shortlist of the best ovulation test strips and kits

Best ovulation test kit overall:Clearblue Advanced Digital Ovulation Test Kit, buy on Boots
Best for super-quick results:Boots Ovulation Test Kit, buy on Boots
Best urine-based kit with large test quantity:Femometer Ovulation Test Strips Kit, buy on Amazon
Best saliva-based kit:Fairhaven Health Fertile-Focus Ovulation Microscope, buy on iherb
Best budget test strips:30 x One Step Ovulation Strips, buy on Amazon

How much do they cost and which brands are best?

Standard urine-based OPKs are priced between £10 and £15 per cycle. Most brands offer the same level of reliability, so definitely pick the one that offers you the most tests for the least amount of money.

Salivary ferning OPKs can be better valued. After the initial cost of between £20 to £35 for the microscope, you should be able to use it again and again. However, if it takes you a long time to conceive, you might have to replace it after about two years.

Best for accuracy

This pack comes with the option of 10 or 20 ovulation tests. These tests promise to accurately track your levels of two essential fertility hormones (estrogen and luteinizing hormone) and to identify additional high fertility days that no other test can. With a smiley face display, you can be unmistakably clear in your peak fertility days.

Reviewed by M&B tester Sarah: "Wow, these are by far the best ovulation test kits I've ever used (and I've used a lot!). While I appreciate the high price might be off-putting for some, these are so easy to use and I really like that you get such clear results so there's no guesswork involved, something I certainly found with other tests. It's also brilliant to be presented with four fertile days (both peak and high fertility days) to help increase your chances. Would recommend these tests to everyone trying to conceive."

Best for saliva based

Fertile-Focus is a personal ovulation microscope that claims 98 per cent accuracy. It works off patterns present in your saliva due to hormonal changes. Simply place a drop of saliva on the lens and read the pattern. This handy kit is accurate, easy-to-use and reusable which will save you money in the long run.

One reviewer said: "It is very convenient to use, simple and informative. And you don't have to constantly spend money on tests..."

Best for quantity

Recommended

This is an excellent asset for predicting most fertile days. This product comes with 50 strips and with an app that you can use to track your daily tests. You just need to take a picture of your strip result, and the app will help you to keep track of your ovulation status.

One reviewer said: "This has really helped me track when I’m ovulating. My Ovia app was telling me I was ovulating a week later then I actually am. So I’m glad I bought these to check. I have used others in the past that haven’t worked as well. These are great with the app as it takes the guesswork out of them."

Best for quick results

Boots Pharmaceuticals Ovulation test allows you to identify your ovulation days by detecting the sharp rise, or surge, in the level of luteinising hormone that occur 24-48 hours before ovulation. Read like a pregnancy test, this kit of 20 tests is over 99 per cent accurate and you can expect fast results in just 3 minutes.

One revieweer said: "Worked great, I just followed the instructions inside and started tested on the days advised. Was spot on."

Best for budget

Recommended

Best budget ovulation test strips

With 30 strips in this set, they are wider than most and so are easier to read (which is great when you're perching on the loo). A positive result test line may be observed within 1 minute. However, to confirm negative results, the complete reaction time of 10 minutes is required. They work to an accuracy level of 99 per cent.

Review: "I’ve used the expensive clear blue ovulation tests along with these and swear by this method. Yes they are cheap and yes they are basic but they are very very accurate."

Best for clear results

Pinpointing your two most fertile days each cycle, with this test kit you'll be presented with an ultra-clear smiley face in the digital display when your LH surge has been detected, so you know the best two days to try for a baby.

Reviewed by M&B tester Sarah: "Clearblue can do no wrong in my eyes when it comes to ovulation testing. They are so easy to use with such clear results that you know exactly where you stand. I do think I'd choose the Clearblue Advanced Digital Ovulation kit over this one, simply because it gives your four days but this would be my second choice for sure and is a slightly cheaper option too."

Type: Urine-based OPK

Number of tests: 20

Best for quantity

Clear & Simple Ovulation Test Strips are the perfect way to help you know the best days for conception. These easy to use strips promise 99% accuracy and get the results in 10mins.

One reviewer said: "Really easy to use and also reliable like other pregnancy test kits!"

Best for size

If you’re thinking about having another baby, or maybe starting a family of your own, then being able to accurately predict ovulation is really imprortant. Every woman is different, and even if your cycles are always on time, your fertile days are likely to change cycle to cycle. which is why this easy-to-use urine test will accurately detect those important days.

Best for tracking

When trying for a baby, it is important to keep an accurate track of your previous tests, as they are great indicators for your individual fertility periods. and with these strips it will certainly make your life easier.

One reviewer said: "So, before buying this product, at first I was infertile and that I wasn’t ovulating. But then it showed up that I was and I went to the doctors to check. Tracking my cycles and being able to look back. Love this."

Best for ease

The best ovulation test strips and kits to buy today (29)

Price: £8.99

Wondfo Ultra Accurate Ovulation Test Strips can detect the LH (Luteinizing Hormone) level concentration in the range of 0-65mIU/ml. With quick results, you'll be able to measure low, high, and peak LH levels and calmly predict your ovulation days, even if your cycle length changes every month.

One reviewer said: "There are clear and accurate. The wide enough so you hold it properly. Got my peak straight away before all other tests. Will buy again ."

The best ovulation test strips and kits to buy today (30)

Price: £8.99

Why are Ovulation Prediction Kits helpful?

Having sex consistently, a couple of times a week throughout your cycle, is the best way to increase your chances of pregnancy,but it isalso extremely useful to be able to schedule sex when you know it is likely to make the most difference. This is where OPKs come in.

Couples with busy lives often find regular sex difficult and it can sometimes feel like a chore, especially for those who have been trying for a while with no success. Whileyou could chart your monthly cycles using the temperature method (tracking your temperature for patterns to predict ovulation), taking an over-the-counter test is a quick, easy, and reliable way to predict when ovulation is likely to occur.

If you have irregular cycle length and potentially late ovulation, then OPKs are particularly useful. The test allows you to pinpoint your fertile window throughout the length of your menstrual every month and plan to have sex accordingly. This can often make these times more special, as you know your chances are maximised, improving your relationship and reducing the stress often associated with trying for a baby.

How do ovulation tests work?

Urine-based ovulation tests are the most common, theydetect the LH surge in your urine, which signals when you are about to start ovulating. This is detected one or two days before ovulation. Whilea small amount of LH (luteinising hormone) already exists in urine, the amount increases by twoto fivetimes in the few days before ovulation, which is how the test can reliably identify your most fertile window. During this window, you are most likely to conceive.

Salivary ferning kits are another type of OPK. These operate rather by monitoring the rise in your oestrogen levels both before and just after ovulation. You test your saliva with a tiny, portable microscope and if your oestrogen levels have risen, the salt content of your saliva increases.

When the salt dries, it crystallises into a fern-like pattern, letting you know that you are now in your ovulation window. If you are not in your fertile window, the saliva will just dry in shapeless lumps.

How do you use OPKs?

Urine-based OPKs

These are rather like pregnancy tests, simply wee on a stick and coloured bands will appear on the stick to indicate whether or not the LH surge is occurring. If you are using a digital OPK, they usually use symbols, such as a smiley face to let you know when you are on your most fertile days. Generally, you should try to collect your wee between 10am and 8pm. The recommended optimum time is between 2pm and 2.30pm.

It is recommended that you try to collect your wee at about the same time every day, for added consistency, but this is not absolutely crucial. A few more tips - don’t do the test as soon as you wake up, and try to reduce the amount of liquidyou drink for about four hours before you do the test. Too much liquid could dilute your urine, which may make it more difficult to detect the LH increase.

Afterwards, read the test results within 10minutesand throw the testaway once you’ve read it, as sometimes faintly coloured bands start appearing sometime after, which can deceive you about the result.

Salivary Ferning OPKs

Using a salivary ferning OPK is easier, simply place some of your saliva on the slide, either using your finger or licking it. Do this first thing in the morning, before you’ve had anything to eat or drink. Make sure you don’t put too much saliva on it and that it is free of any air bubbles for the best result.

Then, you wait for the saliva to dry and use the microscope to see whether there is any ‘ferning’ or not. You can compare your slide with examples in the instructions to see whether you are ovulating or not that day. With both types of OPK, the best time to start testing is on day 11 of your cycle and you can carry on for six days. Ourovulation calculatorwill help you with that.

Is there anything else to be aware of when using OPKs?

Although over-the-counter drugs like paracetamol won’t affect the tests, those containing Human Chorionic Gonadotrophin (hCG) or LH can have an effect on your result. Equally, some fertility drugs can also affectthe results, so make sure you check any medication before taking the test.

Urine-based LH tests are 99% accurate at detecting ovulation. Salivary ferning tests aren’t as accurate, as the process of ferning may happen at other times in your menstrual cycle, especially if you are taking fertility drugs. One thing to note is that if you have poor eyesight, salivary ferning kits may not be the best method to choose.

Emily Gilbertis the Features & Reviews Editor for Mother&Baby and has written for the website andpreviously themagazine for six years. Specialising in product reviews, Emily is the first to know about all the exciting new releases in the parenting industry.

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