When is the most accurate time to take a pregnancy test? 4 major points to note when taking a pregnancy test

　　Every expectant mother who is looking forward to pregnancy and constantly working hard to prepare for pregnancy will want to know whether she is pregnant as soon as possible. Therefore, under normal circumstances, some pregnant women female I always take a pregnancy test stick or pregnancy test paper to check whether I am pregnant. In order to better understand the situation, many women ask when is the most accurate time to take a pregnancy test? What should I pay attention to when taking a pregnancy test after having sex? Next, I will introduce them one by one for your reference.

　　When is the most accurate time to take a pregnancy test?

　　When is the most accurate time to take a pregnancy test? The first thing you need to understand is the process of conception and the principles of pregnancy tests.

　　On the first day of menstruation, a new ovulation cycle begins slowly. After about two weeks, the egg will mature and be released. However, this time may vary from person to person. After the egg is discharged from the ovary, it will be caught by the umbrella-shaped end of the fallopian tube and enter the fallopian tube in about two or three minutes. After entering the fallopian tube, the egg will advance with the help of the swing of cilia.

　　On the other hand, in ejaculation back, sperm Will swim hard Uterus In the neck, powerful sperm may enter the cervix within 90 seconds after ejaculation, but if it cannot enter, the sperm will be unable to move and lose its effect in the vagina after 2 hours. After entering the cervix, there will be some members of the sperm team who are at the forefront. They may reach the fallopian tube 5 minutes after ejaculation. However, they are often covered with injuries and are unable to conceive. Most sperm will use the cervix as a base and slowly advance to the fallopian tube within 24 hours to join the egg.

　　There are about 200 to 300 million sperm in the vagina during ejaculation, but only a few hundred reach the fallopian tube near the egg. Many sperm may also rush over and enter the abdominal cavity, so there are not many sperm that can actually fertilize the egg. Generally speaking, the egg becomes infertile 24 hours after ovulation and the sperm becomes infertile 72 hours after ejaculation. Of course, there are very few exceptions. The longest time recorded in the literature for fertilization is 3 days for the egg and 6 days for the sperm.

　　Sperm and eggs normally combine in the fallopian tube. The fertilized egg is called a fertilized egg and begins to divide and grow from two cells to four cells to eight cells... that is, about 3 days after ovulation, it enters the uterine cavity and forms the so-called blastocyst stage (30 to 200 cells). This blastocyst has the ability to implant. , but half of them will fail to implant. If it goes well, the implantation will be successful in about 3 days, and the placenta will slowly form. On the same day as the implantation is successful, villi hormone will begin to be secreted, so villi hormone can be measured in the blood and urine. It can be detected by a pregnancy test about 8 to 9 days after ovulation.

　　If we add up the maximum possible lifespan of eggs and sperm, that is 3+6=9 days, plus the 9 days after fertilization that can be detected, the total is 18 days. That is to say, if you test for pregnancy on the 18th day after the last sexual intercourse, if you are not pregnant, except for a few exceptions, you should not be pregnant.

　　It should be noted that the pregnancy test is more accurate based on the first urine in the morning. If the pregnancy test kits currently on the market have not expired, the accuracy is pretty good, but there is also an error rate of 1 to 3%. If you are not sure, it is best to go to the Hospital Take a test or draw blood to ensure the quality of the pregnancy test.

　　What should I pay attention to when taking a pregnancy test after having sex?

　　1. Do not drink more water to increase urine volume.

　　Too much water can reduce hormone levels in the urine, making the results less accurate.

　　2. Try to use the first morning urine test.

　　Hormones in urine are most easily detected at this time. For pregnancy tests during the rest of the time, it is important to note that the urine must be in the bladder for more than four hours before it can be used for testing, otherwise the effectiveness will be poor.

　　3. Before testing, be sure to read the instruction manual carefully.

　　Incorrect operation may cause the pregnancy test to be invalid or the pregnancy test results to be affected. Therefore, you must not follow your own ideas to avoid wrong results.

　　4. Pay attention to the effects of drugs or food.

　　Before taking a pregnancy test, be sure to read the instructions carefully to ensure that you are not consuming foods or drugs that affect hormone changes.

　　What women need to pay attention to when taking a pregnancy test is that if ectopic pregnancy(Ectopic pregnancy ), the HCG level may be too low to detect with a pregnancy test. If you want the test results to be accurate, it is best to go to a regular hospital for examination.

　　Generally speaking, you can test whether you are pregnant 7 to 10 days after having sex. Using a pregnancy test stick to test for pregnancy is a method that many women will choose. This method will bring more privacy and convenience. Just drop urine on the appropriate spot of the pregnancy test stick or place the pregnancy test stick into the urine. However, if you want to improve accuracy, you must pay attention to the above aspects.