Different Types of Pregnancy Tests and How Accurate are These Tests

Pregnancy Tests

Fertilized eggs implant itself on walls of uterus within twelve days of fertilization. At this point, production of hormone Human chorionic Gonadotropin takes place at a rapid rate by egg cells. The hormone reaches its peak by end of twelfth week as it has capacity to increase at a very high rate. It is sensible to undergo a pregnancy test, as it is a confirmation of presence of hCG hormones and upcoming child inside a body.

How to Use a Pregnancy Test

It can be an exciting and emotional time when you find out you are pregnant. The days before can be filled with anxiety, hopefulness and anticipation. This not only affects your health but being pregnant will affect your whole life. There was a time not so long ago that you had to wait for 2 weeks after your missed period and then visit the doctor who may or may not have been able to confirm your pregnancy. Sometimes you had to wait even longer and then take another test.

When To Take A Pregnancy Test

But these days things are different. There are tests available right at your local drugstore that can indicate pregnancy as early as the first day of your missed period, and yes there is a online pregnancy test, however for the most accurate results you should wait one week after your missed period. The steps for using a pregnancy test are quite simple and you can perform the test right in the comfort of your own bathroom. Even so, you should consult with your doctor fairly soon after your positive pregnancy test so that you can begin your prenatal care.

The most common pregnancy tests use urine to detect human Chorionic Gonadotropin or hCG, which is the hormone that is triggered when an embryo implants in the uterine wall, however, it is also produced when the embryo mistakenly implants in the fallopian tube, which is known as an ectopic pregnancy.

There are two different types of pregnancy test. With the first type you collect your urine in a cup and then insert a special stick into the urine for a certain amount of time. This is the most accurate test. There are also tests which allow you to place the stick in your urine stream, which allows you to complete the test easily and in just a few seconds. Either way, the stick usually has a color indicator to tell you if the presence of hCG is there. If it is, Congratulations, you are pregnant, if not, then keep trying.

Numerous Pregnancy Tests And Their Accuracy

Endorsement of pregnancy is possible through different types of pregnancy tests. Some of tests for sanctioning a pregnancy are as follows-

Urine test – Pregnancy tests with help of urine are very common with successful results at either home or at a clinic of a doctor. Nearly ninety seven percent of accuracy is possible in urine tests done at one’s residence. It is possible to take a pregnancy test even on actual date of missed period but is sensible to wait for a minimum of seven days so that results are conclusive. A very important fact about home kit is that every instruction on the kit must be followed religiously to get perfect results. It is worthwhile to take a home pregnancy test in early morning, as urine at that time is concentrated.

  • Pregnancy kit includes a dipstick or a test strip. Dipstick functions by plunging it in collected urine sample, whereas, test strip works by holding it under a urine stream. Both test strip and dipstick will change its color if test is positive, thus confirming pregnancy.
  • Some pregnancy kits have wells inside a test device. During this test, urine is firstly collected in a vessel and then a few drops are dropped inside the well with help of a dropper. Color changes if results are positive.

Accuracy of urine tests– Although ninety-seven percent of tests conducted are accurate but still there is a margin for error in first response pregnancy test. Some instances where result may be false are as follows-

  • If test is conducted before requisite time
  • If urine is not of early morning time
  • If instructions have not been followed properly

Blood tests – Although accuracy rate of blood tests is higher than urine tests, but most women prefer urine tests as early pregnancy tests because blood test is possible only in a lab or a clinic. Possibility of detecting early pregnancy is higher in such tests. Tests can be conducted within seven days of missed period but receiving the results take a bit longer. Blood tests are of following types-

  • Quantitative Human chorionic gonadotropin test – Possibility of detecting pregnancy is higher in this test even with low levels of hormonal changes. Detection of Ectopic pregnancy is likely through this test.
  • Qualitative Human chorionic gonadotropin test determines the presence of hormones after a minimum of ten days of a missed period.

Accuracy of blood tests – Blood tests answers the question how accurate are pregnancy tests quite successfully as they tend to give higher accuracy results.

Ultrasonography is a testconducted In order to visualize the state of fetus after a minimum period of four to five weeks after missed period. It is able to detect the date of pregnancy and heartbeat of baby after seven weeks.

Pregnancy Test Brands

  • EPT
  • Clear Blue
  • Equate
  • Fact Plus
  • First Response

Occasionally you will get a negative reading even when you are pregnant. This is because for whatever reason, the test was unable to confirm the hCG in your blood. If your period still doesn’t come and you think you may still be pregnant, take another test a day or two or even a week later, the results may be different. False positive tests are very rare, but false negative tests happen frequently. You just need to take another test later on.

The most accurate test of all is one that is performed in your doctor’s office. This is a blood based test and you will need to provide a few vials of blood. This test can correctly identify a pregnancy shortly after conception and before your missed period. If you have test positive on a urine based test you should see your doctor soon to begin your prenatal treatment and your doctor may perform the blood based test at that time.