You might find yourself excitedly preparing to take a home pregnancy test after trying to conceive, only to notice a date on the box that has passed. Does this mean your pregnancy test is expired? And can you still use it?
Home pregnancy tests boast an accuracy rate of up to 99 percent when done correctly, but several factors, including that date stamp, can influence your results. So, let’s delve into the topic of pregnancy test expiration dates and when the optimal time to take one is.
Do Pregnancy Tests Expire?
Yes, they do. Like many items in your medicine cabinet, pregnancy tests have a limited shelf life. Understanding the mechanics behind these tests can shed light on why expiration matters. They function by detecting the levels of the hormone human chorionic gonadotropin (hCG), which begins to appear in your urine during pregnancy. If you’re interested in more about this, you can also check out our other blog post here.
If you’re thinking about purchasing a box of pregnancy tests ahead of time while trying to conceive, be mindful of the expiration dates. Using an expired test could lead to inaccurate results, so it’s wise to check the date before taking one.
When Should You Take a Pregnancy Test?
The best time to use a pregnancy test is generally after you’ve missed your period. However, some tests are sensitive enough to detect pregnancy a few days before your expected period. Waiting until after your missed period can help ensure that hCG levels are sufficient for an accurate reading.
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In summary, pregnancy tests can expire, and it’s important to be aware of the expiration date to ensure accurate results. Always consider taking the test after your missed period for the best chance of a positive and correct outcome.