Now a lot of people ask this question however there is no exact answer for this. All test kits are designed to detect the level of hCG hormones present in the urine. Yes depending upon the brand and cost the quality might have slight difference but if used properly they all can produce same level of accuracy. So the accuracy of the test is primarily based on the factor that whether it has been used correctly at the correct time. The question should be like that what is the best kit which can detect pregnancy early.
So if in case you need to test before your periods than for sure you need to identify the correct brand and model for the same. The new digital kits are proven and believed to be working far better than the old strips which has two lines and customers have mixed opinions about those kits. The digital kits have an advantage that you do not need to look for the color of the line because they answer you in exact yes or no. Lot of customers used to complain that even in the best kits available in the market it is very difficult to be sure of the test because the second line which is produced is very faint in color. Since last several years first response and clear blue are the brands which have been producing the best kits. They both have a digital version and first response even have a test kit which can detect your pregnancy six days prior to missing your periods.
So if in case you need to test early than these two are the most accurate models to go for. With any test kit the earlier you will test the accuracy level would be low, simply because your body would not have produced adequate level of hCG hormones for these test kits to be able to detect them.
How Accurate Are Pregnancy Test Kits?
All test kits are designed to detect the hCG hormone also known as the pregnancy hormone which is present in your urine. Not this hormone is not produced by our body until the fertilized egg traverses through the Fallopian tube and implants itself on the uterus wall. Even after that it might require a day or two more for your body to be able to produce adequate level of hCG hormone. Normally every woman has the level of hCG hormone below 5 mIU/ml and only if it raises above five than the woman is considered to be pregnant. Most of the new test kits available in the market are still not able to detect the level of hCG hormone unless and until it reaches till 20 mIU/ml. Hence it is sometimes recommended that you repeat your test after couple of days again so that your hormone level has risen a bit.
Home pregnancy test kits are adequately accurate and are recommended by almost all the medical professionals. Even the doctors use the same kits at their lab. Now an home-based pregnancy test can not replace the blood test because of blood test can reveal n number of more things apart from a woman being pregnant or not. With the blood test Doctor can also tell that since how many days the woman is pregnant, are there any other health issues, is everything normal, what should be the medicine required etc. etc.
Some pregnancy kits which can be purchased over the counter at your local pharmacy store claim that they can detect pregnancy even six days prior to your menses cycle. However this claim is not hundred percent right as it also depends on the body of the woman. Not every woman produce same level of hCG hormones at the same time. If you and your friend get pregnant on the same day and even if you both use the same test kit the results might be different. Theoretically the level of hCG hormone for the test kit to be able to detect it starts to appear only after 14 days of pregnancy. This number is different for different woman as 14 is a standard value for some it could be 14 days but for some woman it could be even 20 or 30 days as well.
If your menstrual cycles are regular and if you can exactly calculate the day of your periods than it would be recommended that you perform the test only after the first day of your missing period. Use the test properly and at the correct time of the day, follow the instructions provided with the kit and protect yourself from any kind of frustration after seeing a false negative result.
To get the most accurate pregnancy result you need to follow couple of things. The first thing as we mentioned above is that you should test at the right day which is the first day off your missing periods. Test as the first thing in the morning and buy the first thing in the morning we mean is use the first urine of the day. Use a flat surface to keep the kit and wash your hands properly to prevent any kind of bacterial contamination. Use a plastic container to store the urine and then collect the urine from that container by using the droplet.
Even though these kits are sensitive enough to produce accurate result even couple of days before your miss your periods but then again it also depends upon your body because not every individual or every woman will start to produce adequate level of hCG hormones on the first day of being pregnant itself.
Also if you have been successfully using this pregnancy test kits in the past does not mean the results would be same today. Our body goes through changes on regular basis when we make any changes to our daily routine like our eating habits or any change in our physical activities. If you have suffered with any kind of illness or any other health issues than also you might receive a different outcome than what you were actually expecting.