Clearblue Fertility Monitor, Touch Screen Ovulation Tracker
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At a Glance
The Clearblue Fertility Monitor is a touch-screen device for women trying to conceive. It reads simple urine tests to track two hormones, estrogen and luteinizing hormone, and shows your Low, High and Peak fertility days. It usually finds more fertile days than LH-only tests. Test sticks are sold separately, and it isn't for contraception.
When you're trying to conceive, guessing at your fertile window can feel like one more thing to get wrong. A fertility monitor takes some of that guesswork off your plate by reading your hormones instead of the calendar. Knowing your most fertile days with a bit more certainty can make each cycle feel a little less overwhelming.
Description
The Clearblue Fertility Monitor is a touch-screen device that reads two of your hormones, estrogen and luteinizing hormone (LH), from simple urine tests. It then shows your daily fertility status as Low, High or Peak. Because it tracks two hormones instead of one, it usually finds more fertile days than an LH-only ovulation test. That's up to six in a cycle, which gives you more chances to time things well.
It keeps up to six cycles of data on one cycle-summary screen, so you can spot patterns over time and share them with your provider. You log your period and the days you have sex on the monitor itself, and it tells you which days to test. Clearblue calls it their #1 OB-GYN recommended ovulation brand. The company reports up to 97% agreement with ultrasound-confirmed ovulation and 99% accuracy at detecting the LH surge.
A few honest notes, because they matter. The monitor needs Clearblue test sticks, which are sold separately. They're an ongoing cost, so budget for them before you buy. It's designed for cycles between 21 and 42 days, and it isn't a contraceptive. No device can guarantee a pregnancy. What this one gives you is clearer information about your timing. And if you've been pregnant recently, Clearblue advises waiting until you've had two natural cycles before using it, since leftover hCG can affect the readings.
It isn't for everyone. Clearblue says the monitor isn't suitable if you have PCOS or menopausal symptoms, or if you're taking hormonal contraception, hormone replacement therapy, fertility treatment or tetracycline antibiotics. With PCOS, LH can stay high through much of the cycle, so the readings may not line up with when you actually ovulate. If that's you, see the PCOS question in the FAQ below.
Why women love it
- Tracks two hormones, not one: reading estrogen and LH helps it find more of your fertile days than LH-only tests
- A clear daily answer: shows your status as Low, High or Peak, so you know when to try
- Easy touch screen: tells you which days to test and can set a reminder
- Stores up to 6 cycles: review your patterns and share the data with your OB or specialist
- Simple urine tests at home: no lab visits, done on your own schedule
- #1 OB-GYN recommended ovulation brand (per Clearblue)
- Built for cycles of 21 to 42 days: a good fit if your cycles are fairly regular
Best for
- Women who want to pin down their fertile window with more certainty
- Anyone who's found LH-only ovulation strips too limited
- Tracking cycle data to review and share with an OB or fertility specialist
- Women with fairly regular cycles between 21 and 42 days
- A gift for a friend or sister who's just started trying
Not for contraception or for PCOS, and not ideal in the first cycles after a pregnancy. See the FAQ below.
Getting to know your cycle is one of the most useful things you can do while you're trying. If you want to weigh your options first, our guide to the best fertility trackers and monitors compares this monitor with ovulation strips, hormone monitors and temperature trackers, and it's honest about where each one falls short. And if the waiting has you wondering about timelines, Mindy answers how long it really takes to get pregnant with realistic, evidence-based expectations.
For more tools to help with timing and peace of mind, browse our fertility essentials collection, or read the rest of our getting pregnant advice for help at every stage of trying.
FAQs
How does the Clearblue Fertility Monitor work?
The Clearblue Fertility Monitor reads your hormone levels to tell you when you're most fertile. It uses simple urine tests to track two hormones, estrogen and luteinizing hormone, and shows your daily status as Low, High or Peak. Tracking both lets it flag more of your fertile days than tests that read LH alone.
Does the Clearblue Fertility Monitor come with test sticks?
No. The monitor and the test sticks are sold separately, and you'll buy sticks again every cycle. It's worth putting that in your budget before you buy. The monitor itself is reusable and stores up to six cycles of your data, so the recurring cost is the sticks, not the device.
Which test sticks does the Clearblue Fertility Monitor use, and how many do I need?
Only Clearblue Fertility Monitor Test Sticks work with it, so ovulation tests and other brands won't read. Most women use 10 sticks a cycle. If your cycles run longer than 35 days or are irregular, or the monitor hasn't picked up your LH surge after the first 10, it asks for 10 more that cycle, so plan for 20.
How is a fertility monitor different from an ovulation predictor kit?
Most ovulation predictor kits track one hormone, the LH surge, which flags roughly two fertile days. This monitor tracks two hormones, estrogen and LH, so it usually finds more fertile days, up to six per cycle. That wider window gives you more chances to time intercourse each cycle.
Will a fertility monitor guarantee I get pregnant?
No. No product can guarantee pregnancy. A fertility monitor finds your fertile window so you can time intercourse, but conception depends on many factors. If you're under 35 and have been trying for over a year, or 35 or older and trying for over six months, it's worth talking with your doctor about next steps.
Can I use it right after a miscarriage or pregnancy?
Clearblue advises waiting until you've had two natural cycles in a row before using the monitor, because hCG left in your body after any pregnancy can affect the readings. If you've had a loss or recently given birth, check with your provider about when it makes sense to start tracking again.
What cycle lengths does the monitor work for?
It's designed for women whose natural cycles last between 21 and 42 days. If your cycles are very irregular or fall outside that range, the monitor may be less reliable for you, and a different way of tracking might fit better. Your provider can help you choose the right tool.
Can I use the Clearblue Fertility Monitor if I have PCOS?
Clearblue says it isn't suitable if you have PCOS. With PCOS, LH can stay high through much of the cycle, so the monitor may show High or Peak days that don't line up with ovulation. A monitor that shows actual hormone numbers and confirms ovulation with PdG gives you more to go on, and it's worth using alongside your provider. Our guide to how PCOS affects fertility covers what else helps.
Is this a good gift for someone trying to conceive?
It can be, if she's early on and has mentioned wanting to track ovulation. It's a practical gift. Keep in mind the test sticks are a separate, ongoing cost, so you might pair it with a pack of sticks. And because trying to conceive can be a tender subject, a low-pressure note tends to land best.
Clearblue Fertility Monitor, Touch Screen Ovulation Tracker