when should i take a pregnancy test with irregular periods?
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If you have irregular periods, try counting 36 days from the start of your last menstrual cycle or four weeks from the time you had sex. At this point, if you are pregnant, your levels of hCG should be high enough to detect the pregnancy.
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You could be pregnant if you miss a period and you've had sex. See your GP if you've taken a pregnancy test and the result is negative (you're not pregnant) and you've missed 3 consecutive periods. They will investigate the cause and recommend any necessary treatment.
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Pregnancy tests are most reliable from the first day of your missed period, although some tests can be used as early as 4 or 5 days before your period is due. Check the packaging of your test to find out when it can be used. If you have regular periods, you'll probably know when your next period is due.
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If you have a 28-day menstrual cycle, you can detect hCG in your urine 12 to 15 days after ovulation. ... Because of this, and because many women have irregular periods, 10 to 20 pregnant women out of every 100 will not detect their pregnancy on the first day of their missed period(4).
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You can take a pregnancy test about two weeks after your estimated ovulation day, but the earlier you take a test the less accurate it may be and some brands are more sensitive than others (1). You should probably take a pregnancy test or contact your healthcare provider if your period is nine or more days late.
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If you take a pregnancy test after your period is late and get a negative result, you're unlikely to be pregnant. Home pregnancy tests are very accurate — about 99 percent — but a false negative is still possible. Try taking another pregnancy test in a day or two to double check.
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If the test is still negative, you are probably not pregnant. There may be another reason you are missing your periods. If you keep having negative pregnancy tests and your period is 6 to 8 weeks late, tell your healthcare provider.
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When you take the pregnancy test. But if you wait until the day your period is supposed to start — at which point your body is producing enough hCG for the test to more accurately detect it — you have a 90 percent chance of the correct result.
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Ideally, wait until the first day of your missed period. That's when pregnancy tests are most reliable, although some tests may be used as early as 4 to 5 days before your menstrual cycle begins(1).
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Pregnancy tests. If you think you may be pregnant, taking a pregnancy test as soon as the first day of your missed period can help you get the care and support you need. A home pregnancy test can tell whether you are pregnant with almost 99% accuracy, depending on how you use it.
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If you are not sure which type of bleeding you are having, we recommend waiting three days after the bleeding/spotting stops before taking a pregnancy test.
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If your IUD has caused your periods to be irregular — or to stop completely — you should wait to one to two weeks after you suspect your IUD failed to take an OTC test. These tests are almost 99 percent accurate . In most cases, a negative result means that you aren't pregnant.
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If you do not know when your period is due, it is recommended that you take the test 21 days after having unprotected sex. You can do a pregnancy test on a sample of urine collected at any time during the day.
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For example, if your cycles range from 30 to 36 days, the best time to take a test would be day 37 or later. Even tests labeled for early pregnancy detection can't accurately detect a pregnancy before your period is late.
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You can take a pregnancy test while bleeding or seemingly on your period, because any blood that mixes with your urine will not affect the results of the test. (However, keep in mind that typically a period is a reliable sign that you are not pregnant.)
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When to Talk to Your Doctor About Irregular Cycles Usually, the recommendation is that you try to get pregnant for one year (or six months if you're age 35 of older), and then, if you don't conceive, to see a doctor. This doesn't apply if there are signs of a problem.
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You can take a pregnancy test anytime after your period is late — that's when they work the best. It's a good idea to take a pregnancy test as soon as possible if you miss your period or think you might be pregnant.