How to read pregnancy test strips

Published on: 10 May 2022, 09:00 am IST

Test FSH levels before trying for pregnancy. Image courtesy: Shutterstock

There are so many types of pregnancy strips that are available on the market. And if you are a first-time user, it becomes all the more important to understand how to take a pregnancy strip test. Fret not, because it is no rocket science to take a pregnancy test, and this simple tutorial will help you sail through.

Take a deep breath, and learn how to use a pregnancy strip.

First of all, check which strip you have got – is it a strip with a dropper or without. Figured it out? Now learn how to use each one of these.

Learn the right way to use a pregnancy strip. Image courtesy: Shutterstock

How to use a pregnancy strip with a dropper?

Step 1: Collect the urine sample in a clean container. Step 2: Clean your hands before you open the pouch of the pregnancy test kit. Step 3: Take the dropper, place it in the urine sample container, and fill the urine sample in the dropper. Step 4: Now hold the pregnancy test strip horizontally and see on one end there is a small hole. Drop a few drops of the urine on that hole. Once the drops are soaked, position the strip vertically.

Step 5: In a minute or two the testing strip will show you the result. If you see the following, this is what it means:

  • 1 line: Negative. This means you are not pregnant
  • 2 lines: Positive. This means you are pregnant
  • No line: This means the test is null and void, and you might have to take another one

How to use a pregnancy strip without a dropper?

Step 1: Collect a sample in a clean container. Step 2: Open the pouch with clean hands and dip it in the sample. Let the strip be in the sample for 8 to 10 seconds. Step 3: Remove the strip from the sample and place it on a dry surface.

Step 4: Wait for a minute for the results.

Take a proper pregnancy to confirm. Image courtesy: Shutterstock

Please note: Don’t forget to discard the strip properly after using it because it can lead to infectious diseases. So, either put it in a proper container or put it back in the same pouch and close it properly, before dumping it in a bin.

Also, read: Vitamins and vaccines during pregnancy: An ob-gyn tells you all about it

Girls, if you have got too many invalid tests, don’t get hassled because sometimes these kits can act funny. Also, if you get a positive test, take another test to be double sure. And go about similarly for the negative result. Just in case you need it, don’t refrain from taking medical help.

So ladies, we hope this guide has helped you figure out how to take a pregnancy test. Glad, we can help!

Written by Lori Smith, MSN, BSN, WHNP-BC on May 24, 2017

  • How does it work?
  • How do I take it
  • When can I take it?
  • What happens next?

A pregnancy test can confirm if a woman is pregnant. The test can be carried out at home or in the doctor’s office.

A pregnancy test is around 99 percent reliable.

It works by measuring levels of a hormone called human chorionic gonadotropin (HCG). HCG can be present in the blood and urine approximately 10 to 14 days after conception.

If a woman misses a period or other signs suggest she may be pregnant, it is a good idea to take a test.

A woman should know as early as she can if she is pregnant, as she will probably need to monitor her health more carefully, and she may need to make some lifestyle changes.

Share on PinterestA pregnancy test is 99 percent accurate at letting a woman know if she is pregnant.

A pregnancy test works by measuring the amount of HCG hormone. HCG levels increase during pregnancy.

HCG is known as the pregnancy hormone, because it is produced by the cells that form the placenta and provide nourishment to the growing embryo.

It is released when a fertilized egg attaches itself to the lining of the uterus.

HCG can be present in the blood and urine around 10 to 14 days after conception. It peaks between 8 and 11 weeks of gestation.

  • A negative HCG result is a level less than 5 mIU/ml (milli-international units per milliliter).
  • A positive HCG for pregnancy is greater than or equal to 25 mIU/ml.

Pregnancy tests involve testing urine or blood. A urine test can be self-administered at home, but a medical professional must perform a blood test.

Urine testing at home

A home test involves placing the urine on a chemical strip. The result is ready in around 1 to 2 minutes, although different brands of test may vary in the result times.

The individual collects urine in a container and either dips the pregnancy test stick into it or uses an eyedropper to place the sample on the test strip.

Alternatively, a pregnancy stick can be held in the urine stream.

Each brand of testing has its own way of giving results, so it is important to read the package insert to find out how to understand the results.

Depending on the test, the result may appear as:

  • a change of color
  • a change in a marked line, or the appearance of a symbol, such as a plus or minus
  • an answer in a test window, for example, the words “pregnant” or “not pregnant”

Blood testing

Share on PinterestA blood test can be a more accurate and detailed way to confirm pregnancy. However, a healthcare professional will need to administer this.

There are two ways to check for pregnancy using blood: a quantitative and qualitative HCG test.

  • A quantitative blood test measures the exact amount of HCG present in the blood.
  • A qualitative test detects whether HCG is present or not.

Blood testing has some advantages.

It allows for early pregnancy detection, and it can measure HCG concentration.

However, it is more expensive, the results can take time, and the test must be completed in a medical office.

The earliest time for taking a home urine test is 14 days after possible conception, but waiting until a missed period will give a more reliable result.

Some tests on the market can be taken earlier. This depends on how sensitive they are.

It is important to read the package insert to know the best and earliest time to take the test.

The best time of day to take a urine pregnancy test is first thing in the morning, after waking.

This is because consuming a lot of liquids before taking the test, can lead to a false negative, even if the woman is pregnant.

Used correctly, a urine pregnancy test should be around 99 percent accurate. However, incorrect use can result in an inaccurate reading.

A positive home pregnancy test simply means that HCG is present in the urine, while a negative test can have a variety of meanings.

Negative tests can mean that there is no pregnancy, or they can mean that the test was either taken too early to detect HCG, or that it was not done correctly.

If the result is positive, the woman should make an appointment to see a healthcare professional, who can guide her about the next steps.

If the result is negative, but the woman has the signs and symptoms of pregnancy, she should test again after 1 week or ask a doctor about a blood test instead.

Some modern pregnancy tests and kits can give an estimate of the conception date and consequent due date. However, this information is not always accurate.

Can medications affect the result?

Some medications can affect a pregnancy test’s accuracy.

These include:

  • Promethazine, used to treat certain allergies
  • Parkinson’s disease medication
  • Sleeping tablets
  • Some antipsychotics, including chlorpromazine
  • Opioids, for instance, methadone
  • Tranquilizers
  • Anticonvulsants, including epilepsy treatments
  • Infertility medication
  • Diuretics

Alcohol in the blood stream does not affect the pregnancy test because it does not interfere with the measurement of the hormone levels.

However, anyone who is trying to or expecting to become pregnant should avoid alcohol, as it can affect fetal development. Drinking during early pregnancy can increase the risk of miscarriage, premature birth, and low birth weight.

Other factors that affect HCG

Sometimes, there may be a positive test result but the woman is not pregnant. High HCG can also indicate that some health condition has increased levels of the hormone.

This could be:

  • a deficiency of immunoglobulin A (IgA), an important antibody in immune function
  • gestational trophoblastic disease, a rare, pregnancy-related tumor
  • gestational trophoblastic neoplasms, a rare uterine tumor

HCG can rise as a result of some types of cancer. These are transitional cell carcinoma of the bladder and urinary tract, prostate cancer, renal cancer, and cancers of the gastrointestinal system. A pregnancy test may be used to assess for these.

Pregnancy tests are available at drugstores, pharmacies, and some convenience stores. Home pregnancy tests can be purchased for as little as a dollar, and some health centers offer them free of charge.

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