You may have found results test pack to detect a changing pregnancy, negative at first then positive, or vice versa. Why does this happen and which result is correct?
How the tool works test pack is to check the existence human chorionic gonadotropin hormone (hCG) in the urine. Levels of this hormone will increase with increasing gestational age. When using this tool, you must know how to use it and the things that can affect the results of the examination test pack.
Common Reasons for Changes in Pregnancy Test Pack Results
The following conditions could be the reason why the results test pack can change:
1. Evaporation line (evaporation lines)
Evaporation line is a faint line that sometimes appears, in the test area test pack, when the urine has started to dry and evaporate. The evaporation process can change certain compositions of urine which sometimes results in results test pack to be positive when previously negative.
Therefore, always read the instructions for using the product. Also pay attention to the recommended time to read the results test pack, to reduce the appearance of this line. Each product may have different rules.
2. Tool condition test pack
Before use, make sure the condition test pack which you will use. Products that are damaged, expired, or have a low sensitivity level may give inaccurate test results.
You better choose test pack in good condition and has high sensitivity. To determine the sensitivity level of a product test pack, you can see the description on the packaging.
3. Time to do test pack
Time to do test pack also affect the change in results. The wrong time, for example, it has only been a few days since having sex or during the day, can make the results of the examination test pack not accurate.
In the first condition, the result test pack changes because the hormone hCG has not been produced or is still very low, so it is not detected. This hormone is only produced 6 days after conception and continues to increase every 2-3 days with increasing gestational age.
In the second condition, the results may change because the urine is in a dilute state, where you have drunk a lot. This makes the hormone hCG difficult to detect by the tool testpack, especially if the number is still small.
To avoid these two conditions, it is recommended that you do a test test pack 1-2 weeks after a missed period and when the urine is still concentrated, that is, in the morning after waking up.
4. Drug side effects
Some fertility drugs, such as Pregnyl and Novarel, are often used in IVF and insemination processes. Consumption of this drug can interfere with the results test pack, because these medicines contain the hormone hCG or a hormone similar to hCG.
Better check it out test pack about two weeks after stopping taking the drug, so that the rest of the drug is no longer in the body and the results of the examination become more accurate.
5. Pregnancy condition
Certain pregnancy conditions can interfere with the results of the test pack, such as chemical pregnancy which can make the results test pack positive but not pregnant and multiple pregnancies.
test pack is one of the favorite choices for checking pregnancy, because it is easy to obtain and use. However, many factors can affect the results of the examination. Use test pack by following the instructions on the product packaging. If you are not sure about the results test pack, either positive or negative, check with your gynecologist to confirm your condition.
