They work by detecting the hormone LH. When you buy an ovulation test kit , it comes with several tests strips narrow thin papers , or they may look more like pregnancy test sticks. You either pee on the extended tip of the pregnancy-test-like version, or you pee in a cup and then carefully dip the test strip into your urine.
The results can tell you if you might be ovulating soon. More on reading the results below. Using ovulation strips can help you time sex for pregnancy. When you get a positive result on the test, you should have sex every day for the next two or three days. There are a variety of ovulation predictor kits available.
Clearblue Easy and First Response are the most popular. Like pregnancy tests, you can pay relatively little or quite a lot, depending on how much technology you want. The most expensive variety of ovulation predictors is digital.
The Clearblue Easy Fertility Monitor is one of the more popular digital tests. This monitor detects two hormones, LH, and estrogen. This allows it to detect more fertile days than the paper tests. The cheapest ovulation tests are simply strips of paper. You can purchase the test strips online in bulk , but they often come with no instructions for use. What you choose to buy and use has more to do with your comfort and your ease in reading the test strips. They aren't always easy to interpret.
A digital monitor takes the guesswork out of ovulation testing. A digital test will tell you whether you're fertile or not.
That said, it is pricey. The paper tests, especially the cheaper ones, aren't simple to read. Unlike a pregnancy test where you either have a line or you don't, an OPK test requires you to determine if the test line is darker than the control line. That's not always easy to determine.
More on this below. Despite the slightly more difficult result interpretation, some people love the extra cheap test papers. Ovulation predictor kits work by detecting the levels of LH hormone in your urine. LH stands for luteinizing hormone. As ovulation approaches, LH spikes in order to push the egg into the final stages of maturity.
This spike of LH is called the LH surge. About 36 hours after the LH surge, ovulation occurs. To increase your chances of getting pregnant, you should have sex the two days before ovulation occurs. Since OPKs detect the LH surge that occurs 12 to 36 hours before ovulation , you can be sure to have sex at just the right time for conception.
Because estrogen begins to rise before the LH surge, the Clearblue Easy Fertility Monitor can give you more warning that ovulation is coming. This will allow you to have conception sex for up to a week before you ovulate. Be sure to read the instructions of your particular ovulation predictor kit, since there may be slight variations on how they work. Generally, however, an ovulation predictor kit comes with a set of test strips or sticks.
Some OPKs come with five tests, others with as many as You should begin using the tests about two days before you expect to ovulate. There are also fertility apps that will attempt to guess at when ovulation is likely to occur for you. It helps to have a kit with several test strips if this is your situation. Ovulation predictor kits have two lines. One line is the control line. This just lets you know that the test was used properly and is working.
The second line is the test line. First, it is important to remember that it can take normal, healthy couples twelve months to become pregnant. Even if you have had intercourse during your most fertile time, there are many other factors that affect your ability to become pregnant. Consult your doctor if you have been trying for several months without success. Let your doctor know if you have been using ovulation tests.
This will help your doctor better identify what other factors could be affecting your ability to get pregnant. The three days immediately after a positive test represent the best time to have intercourse to increase the probability of getting pregnant.
Ovulation generally occurs a day or two after the LH surge. The following conditions may create an inaccurate result in the tests:. If you are undergoing therapy with Clomiphene citrate e. In most cases, you should start testing 3 days after taking the last tablet. It is important to consult your physician about the best time to get pregnant once you have stopped using contraceptive methods.
After using hormonal contraceptives, you may experience an irregular cycle. For many women, it takes at least a few months for menstruation to normalize.
Ideally, it is best to wait until your cycle stabilizes, which will also make it easier to monitor your ovulation. You may wish to wait until you have had two normal periods before starting to use an ovulation kit. It is not recommended to use ovulation tests or fertility monitors as a means of tracking your ovulation in order to avoid pregnancy. Ovulation tests only identify the LH surge up to 24 to 48 hours before ovulation, and sperm can survive in the body up to 3 to 5 days.
Therefore, if you have intercourse before you discover the LH surge, the egg could still be fertilized. It is recommended to wait at least until you miss your period before taking a pregnancy test. It takes time for the hCG pregnancy hormone to get high enough to show up on a pregnancy test, so if you test too early, you could get a false negative.
Some tests allow you to test up to four days earlier, but the results are less reliable. Order Pregnancy Tests Online. Weschler, T. Taking charge of your fertility. As you can see, your chances of pregnancy increase as you near ovulation, then significantly decrease the day of ovulation and after. This is why regularly tracking your cycle to predict your fertile window is so important!
The chances of pregnancy increase as you near ovulation, then significantly decrease the day of ovulation and after. Confirming that ovulation happened and that it was successful gives you the best possible chance at conception.
Here are some methods to confirm ovulation :. However, none of these methods can confirm that ovulation was successful. Successful ovulation refers to a high quality ovulatory event in which an egg was released and PdG progesterone metabolite levels remained elevated for long enough to allow for the best possible chance at conception. Without enough PdG for long enough after ovulation it can be more difficult to get pregnant.
Testing with Proov PdG tests on days 7, 8, 9, and 10 after peak fertility i. Understanding your chances of getting pregnant after a positive ovulation test can help you better time intercourse so that you can reach your fertility goals faster!
Shop Fertility Tests. Fertility Fertility Facts. Trouble Conceiving? About About Proov. Meet our Doctors. Help FAQ. Get the app iPhone. Learn More. Your cart is empty. What are ovulation tests and why should I use them? They are less reliable for women with irregular cycles who may have several surges during the cycle.
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