There are so many pregnancy test kits on the market. How do I know which one to use ?

With so many pregnancy test kits on the market how do I know which one to use ?

If you have missed your period and you are looking for a pregnancy test to confirm your pregnancy then any chemist pregnancy test will do the job really well, and should hopefully give you a positive result. All modern home & professional pregnancy tests are very sensitive & accurate and false positives are rare. False negatives usually occur when the test is done too early or at the wrong time of day, so there is insufficient of the pregnancy hormone hcg in the urine sample.

Cheap pregnancy tests kits strips
Pregnancy test strips

If you looking for the cheapest pregnancy tests you will probably need to go online to purchase them. Pregnancy test strips are far cheaper than the leading brands of home pregnancy tests as they contain far less packaging and the technology is far simpler. You will be required to look for two lines on the test strip to confirm a positive pregnancy. They can also be bought in a range of sensitivities and can be bulk bought, if you are doing repeat or early testing before the missed period.

If you are testing early i.e. before you have missed a period , you will need to use an early detection pregnancy test kit which detects a lower level of the pregnancy hormone hcg in your urine sample. False positive can sometimes occur when you are doing very early pregnancy testing before the missed period, when you get a BFP followed several days later by a negative result or a period. This is usually referred to as a chemical pregnancy and means that for some reason the pregnancy did not continue.

More information on using ultra early detection pregnancy tests 

Can home pregnancy tests be wrong ?

Just been asked this very question

I did a pregnancy test recently and it was positive, then 2 days after I did another one just to verify and it said negative ! What does this mean ? Can the pregnancy test be wrong ?

Possible explanations for getting a positive home pregnancy test followed by a negative

1) You may have made a mistake interpreting the test

This is more common than you may think. Pregnancy tests should not be left for too long before reading the result. Make sure you read the instructions and use a timer if possible. we all have busy lives & it is so easy to get side tracked (for example by the phone, the postman or the computer or just life in general) while waiting for the pregnancy test result and then read it too late.

You can not interpret a positive home pregnancy tests result that appears outside of the test time. If this happens the pregnancy test should be discarded and another test performed (ideally on a first morning urine sample-hcg usually more concentrated)

On some home pregnancy tests if the test is left too long a faint line can appear due to the dried urine on the test. This is known by many as an ‘evaporation line’ & can cause confusion .

 If you have concerns about interpreting the results of the home pregnancy test then go for a brand with a digital readout such as the Clearblue Digital Pregnancy Test

Click her for more information on Clearblue Digital Pregnancy Test or to buy

2) False positive pregnancy test.

Possible causes of a false positive on a home pregnancy tests are:

  • recent miscarriage
  • some hormone treatments used for infertility treatments eg hcg injections. If you are having fertility treatments check with your clinic as to whether these can cause a false positive on a pregnancy test
  • recent pregnancy (ie postnatally)

3) You have had a very early pregnancy that was picked up on the pregnancy test but has sadly failed.  This is known as a ‘chemical pregnancy’

Home pregnancy tests now detect very low levels of hcg so these very early failed pregnancies are now picked up more often. This is quite common. Often the pregnancy test is positive before we have even missed a period. In our mothers day they would not even have known they were pregnant. This can be one of the down side to testing before you have missed your period.