false positive on pregnancy test

False positive pregnancy tests | Netmums

The pregnancy test can tell you if you are pregnant. Here are answers to some common questions about them.

Pregnancy tests check urinating or blood for hormone called human chorionic gonadotropin (hCG). Your body makes these hormones after the fertilized egg attaches to the wall of your uterus.

This usually happens about 6 days after fertilization. HCG level increases rapidly, doubling every 2 to 3 days.

The two main types of pregnancy tests blood tests and urine tests.

blood tests

You get this at your doctor's office, but they are not used as often as a urine test. This test can detect pregnancy earlier than a home pregnancy test, about 6 to 8 days after ovulation. Takes longer to get results than with a home pregnancy test

The two types of blood pregnancy tests are :.

A qualitative hCG tests only check hCG. This provides a "yes" or "no" answer to the question, "Are you pregnant?" Doctors often order tests to confirm pregnancy as early as 10 days after conception. Some can detect hCG much earlier.

A quantitative hCG test (beta hCG) measures the exact amount of hCG in your blood. It can find even very low levels of hCG. These tests can help track problems during pregnancy. Your doctor may use them in conjunction with other tests to rule out ectopic pregnancy, when a fertilized egg implants outside the uterus, or after a miscarriage, when hCG levels fall quickly.

urine tests

You can take it at home or in the doctor's office.

Along with being a private and comfortable, a home pregnancy test that is quick and easy to use. They are also very accurate if you follow the directions. This pregnancy test all work the same way. You piss test you with one of these ways:

You have to wait a few minutes before seeing results

After you take the test, you can confirm your results. see your doctor, who can do a pregnancy test even more sensitive.

home urine pregnancy test is about 99% accurate. A blood test even more accurate

home test accuracy depends on :.

Some could see hCG pregnancy test before you miss periods. But the results will be more accurate if you wait until the first day of menstruation.

The results may also be more accurate if you do a test first thing in the morning, when your urine is more concentrated.

You can buy a home pregnancy test at drugstores without a prescription. The cost depends on the brand. But most tests are not very expensive

The results may appear as lines, colors, or symbols such as "+" or. "-" sign. digital test showed the words "pregnant" or "not pregnant." It's important to know what positive or negative results mean.

If you get a positive result, you are pregnant. This is true no matter how faint line, color, or the sign is. If you get a positive result, you may want to contact your doctor to talk about what's coming.

In the next very rare cases, you may have a false positive result. This means you are not pregnant, but the tests say you are. You can have false-positive results if you have any blood or protein in your pee. Certain drugs, such as tranquilizers, anticonvulsants, hypnotics, and fertility drugs, can cause false positive results.

If you get a negative result, you may not be pregnant. But you may be pregnant if:

If you get a negative result, consider re-testing in about a week to check. Some home pregnancy tests suggest doing this no matter what your first result.

If you take the test twice and get different results, contact your doctor. A blood test is a good idea to confirm the results.

If you have any other questions about pregnancy tests or the results, contact your doctor or the telephone number listed with the test.

SOURCE:

American Pregnancy Association: "Understanding Pregnancy test: Urine & Blood," Take a pregnancy test, "" Pregnancy FAQ :. Early Pregnancy "

The Department of Health and Human Services:" Pregnancy Test :. FAQs "

Lab Tests Online:" hCG. "

Mayo Clinic:" ectopic pregnancy "

Pagination

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WebMD does not provide medical advice, diagnosis or treatment

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