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Clearblue Fertility Monitor 1 Count,

3.8 out of 5 stars 669 customer reviews
| 37 answered questions
About the Product
  • The Clearblue Fertility Monitor is the most advanced way of tracking fertility and the only non-invasive method that detects both LH and estrogen hormones.
  • Gives you comprehensive, personal information about your cycle to help you map out your fertility calendar.
  • Counts the days and tells you which days to test.
  • Tells you when you're having Low, High, and Peak fertility days.
  • #1 Brand Recommended by OB/GYNs.† †Data on file. Research into recommendation of Ovulation Tests & Fertility Monitors with 204 US Ob-Gyns. (Kantar Health)

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  • Clearblue Fertility Monitor 1 Count,
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Product Description

Product Description

The Clearblue Fertility Monitor identifies the prime fertility days to help women who are trying to conceive maximize their chances of getting pregnant. A non-invasive and easy-to-use device, the Clearblue Fertility Monitor consists of a handheld monitor that, along with the use of the Clearblue Fertility Monitor Test Sticks, identifies changes in fertility hormones. While most over-the-counter ovulation tests monitor the LH hormone on its own, the Clearblue Fertility Monitor tracks both LH and estrogen hormones to typically identify up to 6 fertile days — 2 days of Peak Fertility days and 1–5 days of High Fertility.

Taking conception to the next level, the Clearblue® Fertility Monitor maximizes a woman’s chances of conceiving a baby by identifying 3x more fertile days compared to traditional ovulation tests. The #1 brand recommended by OB/GYNs, this electronic, hand-held monitor tracks a woman’s personal cycle, detecting two key ovulation hormones: luteinizing hormone (LH) and estrogen. Using the two hormones, the device can pinpoint not only a woman’s 2 peak fertility days, but also 1-5 additional high fertility days prior to ovulation – for a total of up to 6 fertile days.

Benefits of Using the Clearblue Fertility Monitor

  • It has been shown to accurately predict ovulation when compared to serum hormone measurements and vaginal ultrasound scans1, but testing can be done at home and at a fraction of the cost.
  • It gives a more accurate indication of more fertile days than any other home method.
  • It’s quick, easy to use, and easy to understand. The Monitor indicates when to test and the level of fertility every day, requiring no subjective interpretation.
  • It personalizes to a woman’s cycle, storing her information for up to six previous menstrual cycles.
  • It’s natural – no drugs or invasive devices and procedures.
  • It gives advance notice of Peak Fertility, so couples can plan intercourse at their convenience.

How the Fertility Monitor Works

There are only a few days per cycle when a woman is fertile and can conceive. The following chart outlines the phases of a woman’s menstrual cycle, showing how the two most fertile days coincide with the LH surge (24-36 hours before ovulation) and the release of an egg (ovulation). These are a woman’s 2 best days to conceive a baby.

High and Peak Fertility Chart

However, it is generally acknowledged that sperm can survive up to 5 days in the sperm-supportive mucus found in a woman’s body during the fertile days of her cycle meaning there is a fertile window of typically up to 6 days: 5 days before ovulation plus the day of ovulation. Traditional ovulation tests like Clearblue Digital Ovulation Test track the LH hormone and identify a 2 day window of fertility. But the Fertility Monitor also tracks estrogen levels, which rise just before the LH surge, extending the fertile window typically up to 6 days. This extended window can help to reduce the time it takes to conceive2 as it gives more days to try, plus gives advance notice of the 2 peak days.

Testing Directions

Detailed View of Fertility Monitor

The Fertility Monitor is easy to use and gives you clear accurate results.

  1. On the first day of your period, you will press the M button to let the monitor know a new cycle has begun.
  2. Each day, you must switch on the Monitor and follow its directions.
  3. On mornings when the Monitor requires further information about your hormone changes, a test will be requested.
  4. Simply remove the test stick from its wrapper. (Test sticks are sold separately from the Fertility Monitor. The majority of women need 10 test sticks each cycle. Women with irregular or long cycles may have to use 20 test sticks each cycle.) Point the Sampling End of the test stick downward in your urine for 3 seconds.
  5. Take the cap off the handle and place it over the Sampling End of the test stick and remove any excess urine.
  6. Holding the test stick by the cap, insert the test into the Monitor’s Test Stick Slot, pressing down until it clicks into place.
  7. The display will flash for approximately 5 minutes while reading your information.
  8. After 5 minutes, the Remove Test Stick symbol will flash. Once you have removed the test stick, your fertile status will be displayed.

Low FertilityHigh FertilityPeak Fertility

Low fertility = very small chance of conceiving
High fertility = increased chance of conceiving
Peak fertility = highest chance of conceiving

Testing for Pregnancy

When you’re ready to test for pregnancy, choose a brand and product you can trust. In the Clearblue Pregnancy Test Buying Guide, we outline the different features of pregnancy tests so you can feel maximum confidence throughout the entire conception process.

More about Predicting Ovulation

As the diagram above illustrates, timing is key when trying to conceive a baby. While there are manual charting and calculator methods that may be used to predict ovulation, these methods often fall short. They require tracking a woman’s typical cycle length over several months. However, every woman’s cycle is unique and cycles for any one woman can vary from cycle to cycle – making calendar-based predictions unreliable prediction as well as time-consuming. That’s why Clearblue provides a range of products to help predict ovulation without months of charting. You can learn more about predicting ovulation and which method is right for you in our Ovulation Test Buying Guide.

1 Behre HM et al. Prediction of ovulation by urinary hormone measurements with the home use Clearblue Fertility Monitor: comparison with transvaginal ultrasound scans and serum hormone measurements. Human Reproduction 2000;12:2478-2482.
2 Robinson JE and Ellis JE. Mistiming of intercourse as a primary cause of failure to conceive: results of a survey on use of a home-use fertility monitor. Curr Med Res Opin 2007;23(2):301-6.

Product Details

  • Product Dimensions: 1.9 x 1.9 x 7.6 inches
  • Shipping Weight: 4.8 ounces (View shipping rates and policies)
  • Domestic Shipping: Currently, item can be shipped only within the U.S. and to APO/FPO addresses. For APO/FPO shipments, please check with the manufacturer regarding warranty and support issues.
  • International Shipping: This item can be shipped to select countries outside of the U.S. Learn More
  • ASIN: B0000532QB
  • UPC: 633472022203
  • Item model number: 10633472022200
  • Batteries AAA batteries required.
  • Average Customer Review: 3.8 out of 5 stars  See all reviews (669 customer reviews)
  • Amazon Best Sellers Rank: #24,337 in Health & Personal Care (See Top 100 in Health & Personal Care)

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Customer Questions & Answers

Customer Reviews

Top Customer Reviews

By J. Rossi on November 6, 2005
I bought this monitor after 8 months of trying to concieve. I have very irregular periods so the thought of a machine telling me when I was ovulating sounded great.

About the machine: You have to program it to start during your period. So, if you buy it in between your cycles, you need to wait until your next period to begin using the monitor, however you can program it up to day 5 on your period, meaning if you buy this and you are anywhere from day 1-5 in your menses, you can program it for whatever day between those five days you are on. If you purchase the monitor and you are on day 3 of your period, the monitor will allow you to program day 3 and start from there. For me I had a bit of trouble figuring out the programming but to be honest Im not that mechanically inclined, but I did eventually get it.

You start testing when the maching tells you to, so you won't be testing everyday. This helps because it saves $$ on the sticks. You pee on the stick in the morning (first morning urine for best results, as opposed to afternoon urine with OPK'S) at the same time every morning. There is a 3 hour window that is allowed. So if you set your clock for 7am, but you really have to pee at 5:30, you pee at that time so the urine is concentrated. The 3 hour window can go either way- before 7am or after, just as long as its the first urine. The machine will give you either a low, high or peak (with a little egg next to the peak days) reading. The instructions advise you to baby dance on high and peak days.

Now for the cons. Its pricey! The machine itself is expensive, much, much more then OPK's and the sticks are pricey as well. When you buy the machine it will come with a certain amount of sticks, but then you need to buy refills which can get costly.
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I am not advising that you purchase or not purchase this monitor. I simply need to tell you of my experience if you do use it. I was very excited to find a tool that would take the human error out of reading the ovulation test sticks to determine the LH surge, therefore predicting the peak days of fertility.
I used this monitor every month for over a year with one successful pregnancy (ending in miscarriage). The very thing I liked about this tool is possibly what prevented my getting pregnant sooner. I relied too much on the accuracy of the monitor! The machine reads the stick and displays the "fertile day" sign. If there are any errors in this reading, you won't know because you can't read them yourself. You must rely totally on the accuracy of the machine. Whereas, with the simpler ovulation predictor sticks, you can read them yourself; see the line to determine if it is darker or lighter than the test line and can compare it with sticks from one day to the next.
After trying to conceive for so long, I found myself only focusing on the "prime fertile days." I didn't have the energy to "try" if the monitor didn't say I had to. I think by narrowing my target to the 2 or 3 perfect days that this machine predicted, caused me to actually miss my fertile days. I think the machine was wrong. I came to this conclusion one month when I decided to check behind the monitor by using it simultaniously with the ovulation predictor sticks. The monitor read my LH surge as day 12 and I read the sticks as surging on day 18. If I had not checked behind the machine, so to speak, I would have missed my actual peak time. By NOT paying attention to the monitor readings, I persevered and kept at it until day 18 and this was the month I got pregnant.
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After 3 months of using the monitor and not getting 3 bars I saw my doctor, got an ultrasound and did some blood tests because I thought I was not ovulating. All tests came back that I was fine. The fourth month I used the monitor but I also used First Response test sticks. Again, the Clearblue fertility monitor did not read an LH surge but the First Response test sticks did. (See my photos at the top of the product page.) After 4 months thinking I was not ovulating I found out that very simply, my monitor did not work. Please be aware it is possible to get a monitor that does not work. If you don't get 3 bars the first month don't assume that it is you. Get a different test and use both the next month to see if one works before you see a doctor.

The following month I bought another clearblue fertility monitor and also used First Response test sticks. Both showed an LH surge on the same day, and the following month (July, 2011) I got pregnant. Unfortunately I had a miscarriage at 7 weeks in September 2011.

I am trying again this month (October, 2011). I continue to use First Response test sticks in addition as "back up", but the monitor is best because it shows the rise of estrogen. When you see the second bar, start having sex every day until 2-3 days after the LH surge for your best chances.

AMENDMENT: January 2012. MY SECOND MONITOR FAILED TO READ OVULATION FOR THE PAST 2 MONTHS, WHILE THE FIRST RESPONSE TEST STICKS HAVE BEEN POSITIVE FOR OVULATION. I posted pictures. I now know that these monitors are a waste of money. I have studied the monitor and I do not believe it is doing any sort of lab/chemical testing within the monitor. What it does is flash a bright light on the test results.
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