Can I do a blood test to check for pregnancy in the afternoon?

Many people do blood tests when they do early pregnancy tests. As we all know, blood tests have certain requirements for the testers. In many cases, blood needs to be drawn in the morning for testing. So, can I do a blood test to check for pregnancy in the afternoon? In fact, if you just want to check whether you are pregnant, you can do a blood test in the afternoon. But if it is a pregnancy test, it is best to check in the morning!

1. Is it accurate to take a blood test to check pregnancy in the afternoon?

Testing of chorionic gonadotropin and other sex hormones does not require fasting, and the test results are not affected by diet. Therefore, the results of the afternoon blood test are reliable and accurate. If you are drawing blood for biochemical tests such as liver function and blood lipids, which require fasting, it is best to do it in the morning. Blood tests in the morning are more convenient than in the afternoon.

2. The main symptoms of early pregnancy

1. Menstruation stops. Generally speaking, it is normal for menstruation to be delayed by about seven days, but if it is delayed for more than ten days, you should check whether you are pregnant. Of course, sometimes excessive mental stress and some gynecological inflammation may cause delayed menstruation. Therefore, when your period is delayed for more than 10 days, you can go to the hospital for further confirmation.

2. Nausea. Chest tightness and nausea are typical symptoms of pregnancy, which often occur in the early stages of pregnancy. The symptoms will gradually ease as the pregnant woman adapts. In addition, different people experience different symptoms of morning sickness. Some pregnant women may feel like vomiting all day long, while others may feel like vomiting only at certain times of the day, such as when getting up early or at night.

3. Frequent urination. Frequent urination is another typical symptom of pregnancy and a natural phenomenon of pregnancy. Expectant mothers do not need to worry too much. Generally, after 12 weeks of pregnancy, as the uterus gradually expands beyond the pelvic cavity, this symptom will naturally be relieved.

4. Changes in basal body temperature. The human body temperature will fluctuate after pregnancy. The basal body temperature of a normal woman presents a two-way curve, that is, her body temperature will change before and after ovulation. The female body temperature will be relatively higher during ovulation. If the menstruation is delayed, and the basal body temperature does not drop after rising, and lasts for more than half a month, then it is very likely that you are pregnant.

3. How long does it take for a blood test to detect pregnancy?

Generally speaking, pregnancy can be detected if menstruation is delayed for about a week. It is recommended that you should pay attention if menstruation has not come after another week. It is best to use the first urine in the morning for urine testing, as this has a higher accuracy rate. Generally, a blood test can detect pregnancy within 15 days. The test strips commonly used nowadays will take at least thirty to thirty-five days to detect a weak positive result.

Generally, you can test yourself to see if you are pregnant 7-10 days after having sex or 3-5 days after your period is delayed. The scientific and accurate method is to do a blood HCG test. As long as your menstruation is normal, you can measure it on the 40th day starting from the day your period comes. If you use an early pregnancy test strip to test yourself, you can observe the color of the line. If the color is lighter, it means the pregnancy period is shorter. If the color is darker, it means the pregnancy period is longer. You can also calculate the approximate fertilization time and fertilized egg implantation time based on your ovulation period.