We independently evaluate all of our recommendations. If you click on links we provide, we may receive compensation. What to Buy Personal Care & Medical Devices The 12 Best Fertility Monitors of 2024 Our OBGYN-approved, editor-tested picks are affordable, accurate, and easy to use By Sarah Bradley Sarah Bradley Sarah Bradley is a freelance writer with six years of experience creating personal essays, reported features, and commerce content related to health and parenting topics. health's editorial guidelines Updated on April 29, 2024 Medically reviewed by Sanaz Ghazal, MD Medically reviewed by Sanaz Ghazal, MD Sanaz Ghazal, MD, FACOG, is a double board-certified fertility specialist and the founder and medical director of the innovative fertility clinic RISE Fertility. At RISE Fertility, Dr. Ghazal emphasizes fertility care for all. learn more Fact checked by Richard Scherr Fact checked by Richard Scherr Rich Scherr is an updates strategist and fact checker for Dotdash Meredith brands, including Health and Verywell. He is a seasoned financial and technology journalist who served as editor-in-chief of the Potomac Tech Wire for nearly two decades, and is a regular contributor to the sports pages of The Baltimore Sun. He has also been a news editor for America Online and has contributed to the Associated Press and The Washington Post. health's fact checking process In This Article View All In This Article Reviews Types of Fertility Monitors How We Selected and Tested the Best Fertility Monitors Our Experts What to Know About Fertility Monitors Your Questions, Answered Who We Are Health Getting pregnant isn’t as easy as flipping on a light switch. While many people happen to conceive on one of their first few tries through good timing, just as many people have to work hard to figure out when they’re fertile. That all-important fertile window can be unpredictable and elusive, but fortunately, fertility monitors can help. Fertility monitors increase the likelihood of getting pregnant because they help pinpoint the best times for intercourse, says Monte Swarup, MD, an Arizona-based OBGYN. The information provided by fertility monitors can help track your cycles to predict fertility and ovulation, making it easier to know when you have your best chance at conceiving. On the flip side, some people utilize fertility monitors to avoid conception without using birth control. To find the best monitors for various fertility concerns, we talked to experts about which features to prioritize in your shopping search. We researched nearly two dozen kinds of monitors and tested 18 monitors ourselves to find the most user-friendly, accurate products. A double board-certified fertility specialist on our Medical Expert Board also reviewed this article for medical and scientific accuracy. Types of Fertility Monitors Fertility monitors work by measuring levels of hormones in your urine, basal body temperature (BBT), cervical mucus, or some combination of these three metrics. There are many different types, including: Wearable monitors: Wearable monitors include bands worn on your upper arm or wrist, usually overnight, so you don’t have to remember to take your BBT when you wake up. Since your basal body temperature rises soon after ovulation, this fertility monitor is useful for confirming that ovulation has occurred. When used over time, wearable monitors can help you more accurately track your cycles and predict your fertile window.Vaginal monitors: Vaginal monitors are inserted into your vagina for a predetermined length of time. They are designed to measure the quality of your cervical mucus and alert you to increased fertility, signaling it's time to avoid pregnancy or try to achieve it. Urine-testing monitors: You’ll need a set of urine test strips and an electronic reading device for this type of monitor. Once you’ve collected a urine sample, dip the stick in the urine, insert it in the device, and wait for it to give you results. Depending on the device, you may be able to track your LH, progesterone, and estrogen levels to determine where exactly you are in your cycle. Basal body thermometers: This type of monitor works in the same way as a wearable monitor, except you don’t actually wear it. You simply take your temperature orally first thing in the morning before getting out of bed, the same way you would with any other oral thermometer. It’s less convenient than a wearable device but much less expensive. Best Overall Tempdrop Fertility and Ovulation Tracker PHOTO: Amazon Orig. $157 $149 at Amazon $215 at Tempdrop.com Why We Like It The Tempdrop Fertility and Ovulation Tracker provides an advanced way to track your basal body temperature (BBT) and get a bird’s eye view of your fertility, no matter your conception goals. Your BBT is your at-rest body temp. It rises after you ovulate, which makes it one of the most well-known ways to understand changes in your fertility throughout your menstrual cycle. Tracking BBT can be helpful for people trying to achieve or avoid pregnancy. BBT usually needs to be taken first thing in the morning, but that can be difficult for people who have an irregular sleep pattern, says Miriam Bernstein, MD, OBGYN with Oneida Healthcare. That's why we love the Tempdrop. You don't need to remember to take your temperature daily. Instead, simply attach the sensor to your upper arm using the flexible and extendable armband, go to sleep, and wake up in the morning to a night’s worth of temperature readings you can add to the Tempdrop app. On the technical side of things, the Tempdrop is comfortable to wear and saves your BBT data in the sensor for 30 days. The app also lets you log other signs of fertility or menstruation. With the premium upgrade, the app can interpret your data and offer fertility window predictions. It's Worth Noting It’s on the pricier side when it comes to fertility monitors. You'll need the app to view your results. Product Details Type: WearableWhat’s included: Tempdrop sensor, armband and extender, battery, battery replacement tool, user manualTracks: Temperature, sleep habitsApp: YesFDA-approved: No Best Affordable iProven Digital Basal Thermometer PHOTO: Amazon Orig. $12 $10 at Amazon View on Iproven.com Why We Like It If taking your daily BBT is an important part of your fertility tracking, but you don’t have the budget for a fancy wearable thermometer like the Tempdrop, the iProven Digital Basal Thermometer is a reliable, no-frills solution. It takes a reading in just 60 seconds, a timeframe that makes a difference when you’re lying in bed first thing in the morning and itching to get up and start your day. You won’t get any fancy results or app synchronization with this thermometer, but you will get a protective case, a spare battery, and the freedom to use any app or pen-and-paper chart you choose. Offering temperature readings to the 100th degree where other thermometers typically only go to the tenth, the iProven is more accurate than its competitors. It also comes in at less than $10, making it a budget-friendly option that doesn’t skimp on usefulness. It's Worth Noting It’s low-tech, meaning there's no backlight or app synchronization. Product Details Type: ThermometerWhat’s included: Thermometer, plastic case, extra batteryTracks: TemperatureApp: NoFDA-approved: Yes Best Wearable Ava Fertility Tracker View on Avawomen.com Why We Like It The Ava Fertility Tracker is a wearable thermometer similar to the Tempdrop, except for a few key differences. To start, it’s about $100 more expensive, but the increase in price makes sense when you account for the fact that it collects more data. In addition to temperature, the Ava monitors other physical signs, like heart rate, breathing rate, and rate of perfusion (or how much blood is flowing through your body tissues). It’s also worn on the wrist rather than the upper arm and was the first wearable temperature tracker approved by the FDA. The other main difference between the Ava and the Tempdrop is app usage. You can use the Tempdrop app in a limited capacity to store and view your data, but can’t receive fertility prediction info unless you upgrade your account. In contrast, your purchase of the Ava bracelet includes a certain number of months of prepaid app usage already built in. It's Worth Noting The wrist placement of the bracelet is comfortable but not ideal for detecting an accurate basal body temperature. Product Details Type: WearableWhat’s included: Ava bracelet, USB charging cable, user manualTracks: Temperature, pulse, and other signs of fertilityApp: YesFDA-approved: Yes Best Thermometer Daysy Fertility Monitor PHOTO: Amazon Orig. $319 $269 at Amazon Why We Like It If you’re getting serious about conceiving and want a device that interprets your temperature readings over time, then the Daysy Fertility Monitor might be the high-tech thermometer you’re looking for. It can’t remind you to take your daily BBT, but it does virtually all the other work for you. The Daysy doesn’t just take your temperature and spit out a reading. Instead, it records your data and uses a special algorithm to determine what those readings mean about your fertility. Rather than simply giving you a temperature degree and leaving you to figure out what to do with it, the Daysy uses a color-coded fertility status system spelling out how fertile (or not) you are. It also comes with its own app, so you can crunch your numbers across digital ovulation charts, share your info with your partner or fertility doctor, and track other fertility signs like cervical mucus and menstruation. It's Worth Noting It’s the most expensive option on this list. Product Details Type: ThermometerWhat’s included: Daysy thermometerTracks: TemperatureApp: YesFDA-approved: Yes Best Digital Clearblue Fertility Monitor PHOTO: Amazon $104 at Amazon $150 at Walgreens $92 at Walmart Why We Like It All the experts we interviewed say test strips that detect the presence of luteinizing hormone (LH) in your urine are the most effective and accurate way to monitor ovulation. Digital monitors like the Clearblue Fertility Monitor have the benefit of being an in-hand device that can read your test strips and help you understand your results. Reproductive and endocrinology specialist Shahin Ghadir, MD, of Southern California Reproductive Center, says this monitor is accurate and good at narrowing down the information his patients need to track ovulation. We love that the device features a large, user-friendly touch screen that clearly displays your chances of conceiving. While other devices rely on an internet connection, this one does not, making it especially good for travel. The device also gives you your testing window, making it easier to use if you can’t remember when you last tested or when you’re due for your next test. It's Worth Noting The cost doesn’t include any test strips, so that’s a separate expense you’ll need to budget for. Product Details Type: Digital monitorWhat’s included: One digital monitorTracks: Estrogen, luteinizing hormoneApp: NoFDA-approved: No Best Testing Strips Easy@Home Ovulation Test Strips and Pregnancy Test Strips Combo Kit PHOTO: Amazon Orig. $21 $19 at Target $20 at Walmart Why We Like It If you like the idea of testing your urine for hormone surges but not the idea of spending a lot of money on a digital monitor or meager numbers of test strips, this 50-count pack of Easy@Home Ovulation Test Strips is the perfect compromise. The testing process is the same as it is for any other ovulation testing kit that includes a monitor, except there's no monitor. Instead, you can view your results on the strip its elf after five minutes. It works a lot like a pregnancy test. Two lines mean you’re coming up on your fertile window (and the darker that second line, the higher your LH levels), while one line means your hormone levels are still low. If this sounds a little confusing, Easy@Home has that covered, too. Their ovulation predictor app makes it easy to manually input or scan your test strip results to interpret your hormone levels. As a bonus, the kit includes 20 HCG strips, so you can test for pregnancy from one month to the next. It's Worth Noting If you’re looking for more comprehensive fertility testing or interpretation of your results, these strips won’t give it to you. Product Details Type: Testing stripsWhat’s included: 50 luteinizing hormone test strips, 20 pregnancy test stripsTracks: Luteinizing hormoneApp: NoFDA-approved: Yes Best Vaginal kegg Fertility Tracker PHOTO: Amazon View on Kegg.tech Why We Like It We’ve talked about BBT and luteinizing hormone as key factors in pinpointing your fertile window, but there’s one other factor: cervical mucus, which gets thicker and more, well, mucous-y the closer you get to ovulation. You can learn to assess the quality of your cervical mucus manually, but not everyone has the time (or the stomach) to do it themselves. If that sounds like you, the kegg Fertility Tracker is worth considering. This tracker detects the quality of your cervical mucus by measuring the electrolytes in your mucus and sending that data to the kegg app, which analyzes your data and predicts your fertile window. Notably, the kegg can do this all in two minutes. Just insert it into your vagina according to the instructions, wait for it to take its reading, then sync it to the app for results. The kegg serves another unrelated but helpful purpose: It can coach you through a brief set of Kegel exercises each day, which strengthen your pelvic floor and may even improve the accuracy of your mucus reading. It's Worth Noting You need to be comfortable inserting a device into your vaginaFactors like intercourse, menstruation, and vaginal creams or medications can interfere with cervical mucus readings. Product Details Type: Vaginal monitorWhat’s included: Monitor, charging set, user manualTracks: Quality of cervical mucusApp: YesFDA-approved: No Best App and Monitor Inito Track & Confirm Ovulation & Fertility Monitor PHOTO: Amazon $149 at Amazon Why We Like It For people who like the idea of a digital monitor but want even more fertility information and data access, the Inito Track and Confirm Monitor expands on the ovulation tracking offered by other options on this list (such as the Clearblue). Instead of seeing the results of your urine sample on a digital touchscreen monitor, you clip and sync the Inito to your iPhone, open the Inito app, and gain access to detailed fertility charts and conception recommendations. The real standout feature of the Inito is its ability to measure estrogen, luteinizing hormone, and progesterone (most ovulation test strips don’t check progesterone levels). Higher levels of progesterone can confirm that ovulation occurred. Inito strips signal when you're fertile (or are about to be), and they can also give you the peace of mind that comes with knowing you've probably ovulated. The other good news? You only need one test strip to acquire all this info, not separate strips for each measurement. It's Worth Noting You’ll need a compatible iPhone to connect the device and view your data. Product Details Type: Digital monitorWhat’s included: Inito monitor, 15 test strips, phone attachment clipTracks: Estrogen, luteinizing hormone, progesteroneApp: YesFDA-approved: Yes Best for Ease of Use Stix Ovulation Tests PHOTO: Stix View on Getstix.co Why We Like It If you can take a pregnancy test, you can use Stix Ovulation Tests, which work just like regular ovulation test strips except that you don’t have to dip the strip in pre-collected urine or insert it into a digital monitor to read it. Just pee on a stick, like you do for a pregnancy test, lay it on a flat surface for a few minutes, and get your results. Stix tests are easy to read, and the all-important second line that confirms a surge in ovulation hormones appears within a distinctly different heart-shaped window than the control line. If you don't want to mess with urine collection or frequently clean a digital monitor, the convenience and ease of use of the Stix kit are hard to beat. It's Worth Noting You only get seven sticks per box, so they’re not as cost-effective as many other test strips. Product Details Type: Test sticks and readerWhat’s included: 7 ovulation test sticksTracks: Luteinizing hormoneApp: NoFDA-approved: No Best for Irregular Cycles Mira Hormone Monitor Max Kit PHOTO: Amazon $229 at Amazon $249 at Walmart View on Miracare.com Why We Like It The Mira Hormone Monitor Max Kit takes at-home fertility tracking to a new level. It tracks LH, estrogen, and progesterone levels to create a color-coded chart of your ovulation patterns each month. We selected this kit as our top pick for irregular cycles due to its comprehensive testing and top-notch accuracy. Our editor had just had a blood test with her OBGYN the previous week, and the kit numbers were right on track with her blood test results. This kit is high-tech, and we relied on the instructions pretty heavily the first few times we used it. However, once you get the hang of it, it's a user-friendly experience, especially when you consider how much data you receive. There's an egg-shaped analyzer that's charged via a micro USB cable, and the kit also comes with a box of wands. To track fertility, you can sync the analyzer with the app and insert the wands for results. The charts are easy to interpret, and we love the visuals that illustrate hormone levels at different stages of your cycle. It's Worth Noting It takes 21 minutes to get results, which may be a long time to wait if you have busy mornings or want to take multiple tests. Product Details Type: Digital monitorWhat’s included: Mira monitor, 10 wands, user manualTracks: Estrogen, luteinizing hormone, progesteroneApp: YesFDA-approved: Yes Best Non-Digital Ovulation Tests Mosie Baby Predict Ovulation Kit PHOTO: Amazon Orig. $21 $18 at Amazon $21 at CVS View on Mosiebaby.com Why We Like It The Mosie Baby Predict Ovulation Kit is a straightforward ovulation test that gives reliable results every time. There's no monitor included, but it's a practical (and affordable) option if you only need to track ovulation. It only takes five minutes to get results, and the display is easy to read and interpret. If the results line is the same as or darker than the control line, the instructions say you will probably ovulate within the coming 24-36 hours. There weren't any tests that left us wondering if something was or wasn't positive. We found the instructions easy to read and also appreciated the visual information provided, such as a helpful chart that provides recommendations for when to test based on your cycle patterns. To take the test, simply insert the end of the stick into your urine stream for the designated amount of time, then wait five minutes for results. You get seven sticks per box at a great price of less than $20, so they're a budget-friendly option, too. It's Worth Noting It only measures LH levels, so isn't the best choice for people with irregular cycles. There's no app to track results. Product Details Type: Test sticksWhat’s included: 7 ovulation test sticksTracks: LHApp: NoFDA-approved: No Best With FSH Test Proov Complete Testing System View on Proovtest.com Why We Like It Fertility monitors typically track LH, estrogen, and sometimes progesterone, but the Proov Complete Testing System adds one more hormone to that list: FSH, or follicle-stimulating hormone. FSH levels indicate egg quality, which is why FSH is a good marker to track if you're trying to conceive. Despite the impressive amount of data the monitor provides, the testing process is simple. Just dip the test strip into your urine for 10 seconds, then wait 10 minutes for results. We love that you can set up notifications on the app that tell you when you need to test. The results were consistently accurate and easy to interpret when we tested the monitor, and the app made it easy to track the entirety of our cycle to get the best possible picture of when we ovulated. It's Worth Noting The app provides a lot of information and might be a bit too comprehensive if you just need a simple way to track ovulation. Product Details Type: Digital monitorWhat’s included: 3 FSH tests, 17 multihormone tests, Proov Insight app, Proov app card, user manualTracks: Estrogen, luteinizing hormone, progesterone, follicle-stimulating hormoneApp: YesFDA-approved: Yes How We Selected and Tested the Best Fertility Monitors To find the best fertility monitors, we consulted with three experts—an OBGYN and two reproductive endocrinology specialists—to find out how monitors work, what they can and cannot do when it comes to determining your fertility, and which features you should keep in mind while shopping for a product that best suits your needs. Our experts generally prioritized simplicity of use and accuracy over cost and type, noting that the best fertility monitor is one you will reliably use. With that in mind, we opted for a mix of different types of monitors, including everything from urine test strips to wearable devices to thermometers, and also covered a wide range of pricing. If a monitor was expensive, we didn’t necessarily rule it out, but we did make sure it was worth its price tag in terms of convenience and accuracy. We also tested three of the products on our list and rated them based on the following factors: Accuracy: We tracked whether the results of each test aligned with our signs and symptoms of ovulation, as well as any other tracking methods we had been using before the testing period began.Ease of Use: We rated each test for how easy it was to use and how clearly the instructions explained the process. We also noted how user-friendly the connected app or online tracker was, where applicable.Speed of Results: We compared the time it took to obtain results to the time listed in the instruction manual. We also noted if the test took longer than 5-10 minutes, which might make it impractical for busy schedules.Consistency: We tested each monitor over multiple cycles and noted whether or not each one provided consistently accurate results.Value: At the end of the testing period, we checked the product's price and rated each monitor based on how well the price reflected the monitor's quality and accuracy. Our Experts Experts we spoke to included: Monte Swarup, MD, an Arizona-based OBGYNMiriam Bernstein, MD, OBGYN with Oneida HealthcareShahin Ghadir, MD, of Southern California Reproductive Center What to Know About Fertility Monitors What Fertility Monitors Are: A fertility monitor is any device you utilize to predict your fertile window and pinpoint the optimal time to try to conceive. How Fertility Monitors Work: Fertility monitors have different ways of determining your fertility, but they all rely on taking readings of your BBT, cervical mucus, or urine-based hormone levels and then reporting that data back to you either in an app or on the device itself. Most monitors track one type of data (for example, thermometers determine your BBT). You may want to utilize more than one type of monitor for maximum accuracy when predicting your fertile window. Accuracy: The experts we interviewed say luteinizing hormone (LH) testing strips are generally the most accurate way to pinpoint your fertile window. Many of these products claim to have an accuracy rate in the high 90s, but no monitor is 100% accurate, says Dr. Bernstein. A monitor can’t diagnose or address underlying medical problems like blocked fallopian tubes, low-quality sperm, uterine abnormalities, egg quality, uterine fibroids, or number of follicles. Inconsistencies in how you use your chosen fertility monitor—like taking LH readings at the wrong time or skipping BBT readings—can also decrease any monitor’s effectiveness. Using a monitor in consultation with your care provider will always yield the most accurate results. Privacy Concerns: When Roe v. Wade was overturned in the spring of 2022, many people had concerns about how their fertility data might be used if they chose to upload it to an internet-based app. There are some privacy concerns to be aware of, says Dr. Swarup, since millions of people use these apps to help track menstrual cycles and don’t know how their data is being used. There’s no evidence that data is being sold by fertility apps, but that doesn’t mean it can’t happen. You should be as cautious with fertility apps as you are about any other app where you willingly share your private and personal health information. Always read the app's disclosures and privacy statements before you click, “I consent,” and reach out to the makers of these apps if you have any security concerns. Your Questions, Answered What’s the best way to track fertility? According to Dr. Swarup, LH test sticks are the most reliable tool because they can detect when your ovaries are releasing an egg, which gives you about 12 to 36 hours to attempt conceiving. Other long-term methods, like BBT thermometers, can also track your fertility by capturing how your cycle changes over time. Do fertility monitors work? Most fertility monitors do what they claim to do reasonably well, but Dr. Swarup warns they are still not 100% accurate in guaranteeing conception or preventing a pregnancy. Plus, many outside factors can interfere with the data they give you, such as lack of sleep, illness, or a more serious reproductive issue. Getting a useful picture of your fertility and reproductive health often involves tracking several signs of fertility or, better yet, consulting with a fertility specialist. Who We Are Sarah Bradley has been a freelance writer since 2017, tackling health commerce articles, product reviews, and shopping guides on everything from dry skin moisturizers and wart removers to menstrual cups and toothbrushes for braces. She has personally tested health products, so knows what makes a great product stand out from a list of good ones. Was this page helpful? Thanks for your feedback! Tell us why! Other Submit 3 Sources Health.com uses only high-quality sources, including peer-reviewed studies, to support the facts within our articles. Read our editorial process to learn more about how we fact-check and keep our content accurate, reliable, and trustworthy. Steward K, Raja A. Physiology, Ovulation And Basal Body Temperature. In: StatPearls. StatPearls Publishing; 2022. Najmabadi S, Schliep KC, Simonsen SE, Porucznik CA, Egger MJ, Stanford JB. Cervical mucus patterns and the fertile window in women without known subfertility: a pooled analysis of three cohorts. Hum Reprod. 2021;36(7):1784-1795. doi:10.1093/humrep/deab049 Society for Endocrinology. Progesterone.