This was a reader-submitted question. To have your question answered for free, read through this post to the end! Finding it hard to track your fertile days? If pregnancy strips can track the hCG hormone, ovulation strips can trace the luteinizing hormone LH in your urine.
Luteinizing hormone can help predict when your ovulation is approaching. This hormone usually spikes up a few days before ovulation because it triggers the release of an egg from your ovary. According to the American Pregnancy Association, the increase in luteinizing hormone typically happens at around 12 to 24 hours before ovulation.
Ovulation marks the most fertile period in your menstrual cycle. Ovulation strips can trace the presence of luteinizing hormone in your urine. By using them, you can discern when are the most favorable days to have sexual intercourse to increase your chance of getting pregnant.
The appropriate way of using an ovulation test kit may slightly differ per manufacturer. Deviating from the procedure may affect the accuracy of your result. An ovulation test kit often comes with several testing strips or sticks.
A kit may contain 5 to 10 strips. These strips allow you to test for several days before your predicted day of ovulation. Depending on the type of ovulation test strip you bought, you can either directly urinate at the end of the strip or use a cup to collect your urine and carefully submerge the end of the strip. Home pregnancy tests are up to 99 percent accurate when used correctly. But there are some things that can throw off your results — and that little date stamp on the packaging is one of them.
To understand why, it helps to know a little bit about how they work. Pregnancy tests work by measuring levels of the pregnancy hormone human chorionic gonadotropin hCG.
As a result, the pregnancy test is more likely to give you an inaccurate reading. In short, pregnancy tests do expire.
And using one past the expiration date could give you an inaccurate result. Most pregnancy tests last for two to three years.
All tests have an expiration date stamped on the packaging — but that date is two to three years from when the test was manufactured. So if a test was sitting on the store shelf for a while before you bought it, the expiration date might be less than two to three years away.
The lesson? Always check the expiration date before buying. And if you have a pack on hand for a while, look at the expiration date again before you actually take one of the tests. Keeping your test in a dry, room-temperature space like the bathroom is just fine.
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