How does the Clearblue Fertility Monitor work?
The Clearblue Fertility Monitor typically identifies up to 6 fertile days – it not only shows you your 2 Peak Fertility days, it can also inform most women of an extra 1-5 days of high fertility prior to their peak fertility. Since your partner’s sperm can survive in your body for several days, making love on all of these days can lead to conception. The Clearblue Fertility Monitor a natural, non-invasive and easy-to-use device that consists of Test Sticks and a hand-held Monitor to identify changes in the hormones that control your fertility. The Monitor records your personal cycle to build up a picture of your most fertile days. The Clearblue Fertility Monitor gives you comprehensive, personal information about your cycle that is unique to you. You can relax as the Clearblue Fertility Monitor counts the days and tells you which days to test. tells you when you’re having Low, High and Peak Fertility days. and even warns you when your period is due. This allows you to prepare for your next cycle, or, if you think your period is late it may be that you’re pregnant. You can find out if you’re pregnant by using a pregnancy test such as Clearblue, which gives you a clear result and is more than 99% accurate when used from the day your period is due. Click here to find out more about Clearblue Pregnancy Tests.
How can the Clearblue Fertility Monitor maximise my chances of getting pregnant?
In a study, use of the Clearblue Fertility Monitor was proven to increase the chances of conception by 89%.1 The Clearblue Fertility Monitor detects the days in each cycle when you’re most likely to get pregnant. It does this by monitoring two hormones: estrogen and Luteinising Hormone (LH). Estrogen is produced in your body on the days leading up to ovulation. When an increase in estrogen is detected by the Clearblue Fertility Monitor, it indicates that you’ve reached High Fertility, which is typically displayed for 1-5 days prior to Peak Fertility. Since sperm can survive in your body for several days, by making love on these days, you increase your chances of getting pregnant when you ovulate a couple of days later. LH is the hormone that triggers the release of an egg from your ovary. This release – ovulation – usually occurs approximately 24 to 36 hours after the LH surge. When the Clearblue Fertility Monitor detects your LH surge, it displays Peak Fertility status. Making love on these 2 days maximises your chances of becoming pregnant.
How accurate is the Clearblue Fertility Monitor?
The Clearblue Fertility Monitor has been shown in laboratory testing to be 99% accurate in detecting the LH surge in cycles in which an LH surge had also been identified by a reference method.
How effective will the Clearblue Fertility Monitor be for me?
The Clearblue Fertility Monitor can detect Peak Fertility in cycles of 21 to 42 days. If you make love during High and Peak Fertility it can help maximise your chances of conceiving your baby. It’s important, of course, to remember that no products can guarantee success in achieving pregnancy.
What conditions or medication could interfere with my test result?
Most medications (e.g. simple painkillers and cold remedies) shouldn’t affect the way the Clearblue Fertility Monitor works. But some medical conditions and medications can affect the Monitor’s performance. You can find out about them by reading Is the Clearblue Fertility Monitor suitable for me? section. We strongly advise you to always read the manufacturers instructions for any medication you are taking before using the Clearblue Fertility Monitor, and if in any doubt, to speak to your doctor.
I have recently been pregnant. Will this affect my test result?
If you have recently been pregnant (even if not carried to full term) I’d advise you to wait until you’ve had at least two natural menstrual cycles in a row (each lasting 21-42 days) before using the Clearblue Fertility Monitor. This is to ensure that you get accurate readings that are not affected by any hCG you may still have in your body just after pregnancy.
Will oral contraceptives affect the result?
After using the pill (or emergency contraception) it’s a good idea to wait until you’ve had at least two natural menstrual cycles in a row (each lasting 21-42 days) before using the Clearblue Fertility Monitor. This should give your cycle time to stabilise.
I’ve been using basal body temperature and home ovulation tests. Does the Clearblue Fertility Monitor replace these?
The advantage of the Clearblue Fertility Monitor over the basal body temperature method is that it predicts ovulation before it happens. This gives you more time to take advantage of all your fertile days.
The Clearblue Fertility Monitor does everything home ovulation tests can do, and much more. It not only shows your 2 Peak Fertility days, it also identifies additional days when you can conceive. By detecting a rise in oestrogen, it can show most women an extra 1-5 days of High Fertility. This way you’ll know all the days when making love is most likely to lead to conception. It also counts your days for you, tells you which days to test, interprets the tests, displays your fertile status every day and develops a personalised understanding of your cycle.
Do I have to use my first urine of the day to do the tests?
It’s important for you to use your first urine after sleeping as this contains the highest concentration of hormones.
Since it tells me when I’m fertile, can I use the Clearblue Fertility Monitor as a contraceptive?
No. The Clearblue Fertility Monitor is designed to tell you when you’re most likely to conceive. As sperm can survive for several days, you may still have a chance of becoming pregnant if you make love before you detect your High or Peak Fertility.
Can I be sure of getting pregnant if I am using the Clearblue Fertility Monitor?
There are no products available that can guarantee success in achieving pregnancy. However, the Clearblue Fertility Monitor has been proven to almost double the chances of conceiving.1 It allows you to make the best use of your natural fertility by timing your lovemaking around ovulation. The majority of conceptions occur in a 6-day window around ovulation. The Clearblue Fertility Monitor is a simple, effective way of identifying your most fertile days, helping you maximise your chances of conceiving.
Can I stop using the Clearblue Fertility Monitor and start again in the future?
Yes. You can simply remove the batteries and store the Monitor in a dry place. You’ll find instructions on how to restart your Monitor in the Instruction Booklet provided with it.
I have been using Clearblue Fertility Monitor for several cycles and have still not become pregnant. Why not?
Conception is a complex biological process and there are many influencing factors. It’s important to remember that it can take many months to become pregnant. If conception has not been achieved after 6 consecutive cycles, or you have other concerns, it would be advisable to consult your doctor.