Best Fertility Monitors of 2020

For parents who are trying to conceive, the wait for that glorious positive test result can feel endless. It’s no wonder, then, that many couples choose to use a fertility monitor to identify mom’s fertile window, or the short period after ovulation during which pregnancy is possible.

There’s more than one way to monitor fertility, and the process is simple, non-invasive, and doesn’t disrupt intimacy. A missed fertile window means another cycle of waiting to conceive, so take a look at our three favorite fertility monitoring options to figure out which one is best for you.

How Does a Fertility Monitor Work?

Though the term ‘fertility monitors’ technically refers to an oral and vaginal sensor, like the Ovacue, there are several ways to monitor your fertility and identify your peak conception window. This gives you the option of using the method you find the most comfortable and least invasive.

Temperature Tracking

The tracking of basal body temperature, or the temperature of a woman’s body at rest, can act as a fairly consistent predictor of ovulation. This is true in the sense that ovulation invariably causes a low but consistent temperature spike, raising the body temperature from the female average of 97-97.5 F to between 97.6-98.6 F.

The downside to this is that illness, poor sleep, and other factors can sometimes impact basal body temperature1, so some women may find this data difficult to interpret at first. After a few months of data collection, personal patterns tend to reveal themselves more clearly.

Basal body temperature should be taken every morning upon waking and before leaving bed for accurate results. Some thermometers, like the Basal Thermometer on our list, sync results with an app to save you the trouble of tracking and interpreting them; they’re a little more expensive than a standard digital thermometer, but they also take almost all of the effort out of this fertility monitoring method.

Hormonal Urine Test

Urine tests are a near-inevitable part of the pregnancy process. For those who find them quick and easy, a fertility monitor system that tracks the presence of fertility hormones in urine may be an ideal choice. These monitors typically consist of a digital “reader” device that allows you to input your specimen and read information, and external urine strips for specimen creation.

The purpose of the urine test is to identify raising levels of hormones2 which indicate the beginning of your fertile period. Though many ovulation predictors only test for the presence of luteinizing hormone, the Clearblue predictor kit on our list also tests for estrogen levels, increasing the accuracy and specificity of the results.

A urine monitor can assess your sample for LH and estrogen to identify your fertile days, and can can keep a backlog of data to establish your personal cycle. There are upsides and downsides to this method, as it gives a more accurate indication of your peak fertility days than temperature monitoring, but it also requires the ongoing use of test strips for urinalysis, which can be pricey.

Oral and/or Vaginal Sensor

These are fertility monitors in the truest sense of the word, using sensor wands to analyze the electrolyte levels of saliva or cervical mucus. Both of these are impacted by the increase in estrogen that ovulation triggers3, and they allow the monitor to provide more advanced notice of ovulation as well as a more accurate prediction overall.

They feel a bit more “medical” compared to urine tests and temperature monitoring, but readings are taken quickly, and fertility monitors like the OvaCue on our list store data in an app for several months in order to establish accurate patterns and allow you to refer back to previous months. Because they’re a more complex machine that offers greater accuracy, they’re also the most expensive fertility monitoring option.

Do Fertility Monitors Give Accurate Results?

The type of fertility monitoring you do impacts the accuracy level of the results. While all fertility monitors offer potentially helpful data as related to ovulation, the only way that ovulation can be predicted with certainty is through the use of a vaginal ultrasound.

The accuracy of temperature monitoring, for example, is highly dependent on the user. It requires consistent monitoring and a lack of external factors that can raise basal body temperature. While many women have successfully become pregnant through temperature tracking, it’s impossible to offer a percentage of accuracy.

Urine monitoring offers a fairly clear picture of the changes that are happening inside the body, and as such, it offers more definitive accuracy. The ClearBlue monitor on our list ranks at 73% accurate.

Oral and vaginal sensors are the most likely to offer accurate results; the OvaCue on our list has an impressive 98.3% accuracy rating. These monitors also offer the most advanced notice of ovulation, allowing you to plan your intimacy accordingly.

Monitors that use an app to track data can help you to plan more accurately, as they can quantify and interpret your results in a technically correct way.

What Factors May Affect the Outcome of my Fertility Monitor?

There are a few situations in which the results your fertility monitor provides can be influenced by outside factors.

For women who choose basal body temperature monitoring as a means of ovulation tracking, the list of possible factors that can impact results is long, but these are a few of the most common:

  • Movement: BBT monitoring requires taking your temperature before you even get out of bed. Even a little bit of moving around defeats the purpose, so sit still until you’re done with your reading.
  • Insomnia: At least three consecutive hours of sleep are needed for an accurate basal body temperature reading, so work on your sleep hygiene and identify any obstacles to staying asleep through the night.
  • Consistency: If your habits or job require you to keep different schedules on different days, this method may be difficult, as your basal body temperature may rise and fall at different times throughout the day regardless of what you are doing. Try to wake up and temp at the same time every day for optimum accuracy.
  • Alcohol: Imbibing the night before your temperature check might up your morning BBT — but it also might not. Once you track for a while, you’ll be able to tell whether or not booze is a factor in your readings.
  • Environmental temperature: As logic follows, if you sleep in a room that’s exceptionally hot or cold compared to what you’re used to, your basal body temperature is liable to vary. If you get an unusual reading, chalk it up to the room temperature, but if it seems normal, feel free to record it and proceed as normal.
  • Jet lag: Even though travel is fun, it can also be hard on your body, causing temperatures to spike or dip. The temperature changes can affect your readings, and the overall stress of travel can also influence your ovulation.

If you’re using an ovulation kit or traditional monitor to track your fertile window, the list of influential factors is shorter, but also more serious.

  • Medical conditions:If you have PCOS or other conditions affecting the ovarian follicles, hormone levels may seem to peak prematurely and inaccurately.
  • Prescriptions: If your doctor has prescribed a drug containing danazol, menotropins, or hCG, your readings may be inaccurate. This is also true of Clomid and most fertility medications.
  • Pregnancy: If you’re pregnant now, or have recently had a baby, your readings will be affected.

What Type of Fertility Monitor is Right for Me?

Each of these methods of monitoring fertility comes with advantages and disadvantages. Comparing the pros and cons side-by-side can be helpful in cementing your decision.

Temperature Monitoring

Pros
  • Inexpensive
  • Simple, non-invasive
  • No ongoing cost

Cons
  • Hard to predict accuracy
  • Many factors can affect results

Ovulation Predictor

Pros
  • Tracks actual hormone levels
  • More accurate results
  • Base cost is more affordable than a fertility monitor

Cons
  • Test strips have ongoing cost
  • Can be a little messy

Fertility Monitor

Pros
  • Highly accurate results
  • Provides more notice of ovulation
  • Tracks data over time to identify patterns

Cons
  • Requires testing orally and vaginally twice daily
  • Can be quite expensive

Ovulation Tests: How to use and Which One Helped Me Get Pregnant:

The Winners

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From cute dining sets that look just like the real thing to handy, easy to clean plastic tables loaded with storage bins, we’ve put together the best of the best. These models will help you dodge pinched fingers, space complaints, high chair angst, and crayon scuff marks on the kitchen table, so read on to find the one that’s right for your littles.

#1 Basal Thermometer

Best Overall

  • Monitor style: Basal body temperature
  • Price range: $
  • Accuracy: User-determined
  • Window before ovulation: Varies
  • Saves and tracks data: Yes

Temperature tracking is one of the simplest ways to attempt to predict your ovulation window, but keeping track of the data — not to mention interpreting it — day after day can be a big undertaking. That’s why the Femometer Basal Thermometer (check price on Amazon) comes in handy: the convenient little device records your temperature data for you in the app, saving it over time to help create a more accurate picture of your ovulation window.

Its temperature measurements are accurate within 0.01 degree Fahrenheit, and it uses intelligent analysis to piece together your fertility window, assisting with contraception, conception, and early monitoring of your pregnancy.

We really love the Femometer’s convenience features compared to a standard thermometer. Turning on the device is as simple as taking off the cover, so there’s no struggling during those groggy, grumpy early mornings. Measuring your temperature takes less than a minute, so you’ll be off to the bathroom in a quick moment. Finally, the soft beep is perfect for leaving a sleeping partner undisturbed; in the rare case of a very light sleeper, the sound can be reduced even further through the app, which receives data through Bluetooth connectivity.

What we love:
  • It turns on automatically when you take the cap off — your eyes don’t even need to be open
  • It syncs with the Femometer app, allowing you to interpret your results
  • Measurement is quick, and the soft beep won’t wake your sleeping partner

Watch out for:
  • Some users have difficulty maintaining Bluetooth connectivity

Check Price on Amazon

#2 OvaCue Fertility Monitor

Best for Irregular Cycles

  • Monitor style: Oral/vaginal sensor
  • Price range: $$$
  • Accuracy: 98.3%
  • Window before ovulation: 5-7 days
  • Saves and tracks data: Yes

For parents who are trying to conceive and are looking for top of the line equipment to help, the OvaCue Fertility Monitor (check price on Amazon) is just what the doctor ordered. The device uses both oral and vaginal sensors to detect the electrolytes present in saliva and cervical mucus. In order to predict an ovulation window, the device uses the oral sensor to determine estrogen levels and indicate when fertility will occur.

Then, when use of the vaginal sensor is introduced, the shift from estrogen to progesterone dominance in cervical mucus can be detected. This indicates that ovulation has occurred, which means the fertility window is closed.

The accuracy levels of the OvaCue are hard to beat, and the detailed data it gives you is great for helping women with an irregular cycle to interpret when they’ll be ovulating. You’ll learn more about your unique cycle through consistent use of the device, and may find it varies significantly from the “norm”. Unlike monitors that require long use of sensors, daily tests take only a few seconds, so they’re not invasive or time-consuming. Another thing to love: Even though the base cost is a little high, there’s no ongoing cost for test strips, which can wind up being even more costly if you don’t get pregnant in the first few cycles.

One more justification of this expense is that the device can be used to avoid pregnancy when it’s time to begin contraception again, avoiding hormonal birth control.

What we love:
  • It predicts your ovulation window 5-7 days in advance, so it’s easier to plan around it
  • An easy to use daily calendar view lets you track your cycle progression
  • There’s no test strips, so there’s no ongoing cost

Watch out for:
  • Some users find the actual monitor unit to be a bit clunky

Check Price on Amazon

#3 Clearblue Fertility Monitor

Best for PCOS

  • Monitor style: Urine test
  • Price range: $$
  • Accuracy: 73%
  • Window before ovulation: 1-5 days
  • Saves and tracks data: Yes

The Clearblue name is one that’s trusted by both OB-GYNs and moms, and they do way more than convenient digital pregnancy tests. The Clearblue Fertility Monitor (check price on Amazon) is equally easy to use and read, using a handy pocket-sized touchscreen monitor to interpret urine samples taken on external sticks.

It sets itself apart from other ovulation prediction kits in a few ways. First, it generally helps women to identify up to six fertile days, a larger window which better allows for intimacy planning. Second, it tracks both the luteinizing hormone LH and estrogen, which offers a more accurate fertile window — in fact, this monitor is 99% accurate at detecting the LH surge.

It’s one of the best fertility monitors for storing your data over time, as it keeps up to six cycles’ worth of information to help create the most personalized picture of your menstrual cycle possible. Rather than syncing to an app, all your data is viewable through the device’s touch screen, so there’s no cables to keep track of or store.

There’s just one thing to note here, but it’s a biggie: the test strips for this monitor are sold separately, and they’re not reusable, so they account for an ongoing cost. This means if you don’t get pregnant in your first few cycles of use, the Clear blue ovulation test can wind up being one of the more expensive fertility monitors.

What we love:
  • It uses a clear, easy to use touchscreen interface
  • It stores up to six cycles’ worth of data, more than the other fertility monitors on our list
  • Clearblue is the #1 recommended brand by OB-GYNs

Watch out for:
  • This product uses test sticks, which must be purchased separately and will be an ongoing cost

Check Price on Amazon

#4 iFertracker

Best Wearable

There is no more thrilling feeling than wanting to carry and bring life into the world! And no more saddening a feeling than craving this experience but discovering the conception that comes so easily to others is going to be a hardship for you. This turns a wonderful and selfless desire into a stressful and disappointing challenge.

Sometimes the problem is just not having a good understanding and knowledge of your body’s ovulation cycle. A fertility monitor is the best way to track both fertile periods and best times to get pregnant. That’s where the iFertracker (check price on Amazon) comes in handy.

The iFertracker streamlines the aggravation of juggling your cycles and schedule in order to make your dream a reality. This device is worn while you visit the Sandman. The rechargeable device automatically comes on after registering your body heat. Wi-fi takes it from there, with Bluetooth connecting to a second mobile device. Get up in the morning, check your mobile device and get the scoop on how ready you are to seed.

You’re going to love what iFertracker does to relieve the stress of getting pregnant. And your partner’s going to love when you grab his hand and rush him to the bedroom to capture the moment!

What we love:
  • Easy-to-read colored graphs simplifies menstrual cycle phases
  • The app takes input of sexual activity, mood, and such for gathering info
  • You can map out cycle phases

Watch out for:
  •  To get an accurate BBT accounting, be sure to shut down your mobile device before activating the iFertracker and then turn on the mobile device in the morning for syncing

Check Price on Amazon

#5 Clearblue Fertility Monitor, Touch Screen

Best for Budget

My closest friend suffers from PCOS. Her gyno told her that conception might not be easy– so she enlisted my help finding a fertility monitor. After extensive research, her best option was this product. The Clearblue Fertility Monitor Touchscreen (check price on Amazon) made it easy for her and her husband to track the best days to expand their family. Although she wasn’t thrilled about having to buy additional test strips, she said it was well worth it for their eventual results. My goddaughter enters high school come fall.

What we love:
  • Digitial touch screen for easy use
  • Realiable results, quickly
  • Easily approachable for women with irregular cycles and/or PCOS

Watch out for:
  • Test strips are sold separately
  • At least four continuous weeks required for reliable results
  • Peeing on the stick every morning

Check Price on Amazon

The Bottom Line

Although temperature tracking is more vulnerable to interference from external factors than ovulation predictors and fertility monitors, the cost and easy to use design more than justify attempting it before investing in something more costly and potentially unneeded. The Femometer (check price on Amazon), which was designed for women who are trying to conceive, levels up the concept by tracking, storing, and interpreting your data for you via Bluetooth connectivity — reading your results is as easy as opening up the app.

The simplicity and user-friendliness of the device can’t be beat; take off the cap, and it automatically turns on. You’ll have your temperature taken within 30 seconds, indicated by a soft beep designed to avoid waking a sleeping partner, but you can lower the volume even further through the app if desired. For the price, the interface and results of this handy little device can’t be beat.

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