How many days of pregnancy can be detected by test paper

Pregnancy test strips are a product that is convenient for women to check whether they are pregnant. It is only used as an initial screening test and may result in positive or false negative results. So how long does it take for a pregnancy test to show results? Let’s learn about it together below

To understand how long it takes for a pregnancy test to detect pregnancy, you must understand how long it takes for HCG to be produced after pregnancy.

1. Waiting time for sperm and egg after intercourse: one to three days. After intercourse, it takes some time for sperm to merge with the egg. Sometimes it's 72 hours

2. The time it takes for sperm and egg to combine and enter the uterus: three to four days. After the successful fusion of sperm and egg, the sperm and egg combination will grow and move through the fallopian tubes towards the uterus, and it will take about three to four days to reach the uterus.

3. The time for sperm and egg combination: two to three days. After the sperm and egg combine and enter the uterus, they have to move around inside for a while before they can find a focus and finally the embryo implants in the uterus.

4. After the embryo implants, the sperm and egg combine to connect with the embryo and the uterus.

The embryo will produce HCG. HCG will appear in the urine. At the beginning, the concentration value is very low. Sometimes it cannot be detected, or only two bars, one dark and one light, can be detected. The lighter ones may be very light and almost invisible.

5. If fertilization is early and the embryo implants early, HCG will be produced after the first seven days, but the concentration is very low at this time and the pregnancy test paper cannot detect it.

Therefore, you need to wait at least two to three days for the concentration to be higher before you can see two bars, one dark and one light. Therefore, the pregnancy test strips can detect pregnancy in the first 10 days or so.

6. If both ovulation and implantation are delayed, some people may need to wait about 15 days to detect pregnancy.

How to use pregnancy test strips properly?

Many netizens used the test strips for the first time, and they were nervous, expectant, or a little excited. The pregnancy test strips may not be used properly, resulting in incorrect test results. Therefore, it is best to ensure the following to ensure that the test results are appropriate:

1. Use morning urine (the first urine after waking up) for the test, the result will be more accurate.

2. Do not use expired pregnancy test strips (pay more attention to the time on the package).

3. The pregnancy test paper should be used immediately after opening to avoid the test results being negative after moisture.

4. Use strictly according to the instructions. (After dipping in fresh clean urine, place the pregnancy test strip and check the result within 5 minutes)

5. Don’t confuse the ovulation test strips and the pregnancy test strips (the ovulation test strips will show double bars even if you are not pregnant, so when you ask your boyfriend or husband to buy them, don’t buy the wrong ones).