How long does it take to detect pregnancy after a period is delayed?

If young and healthy women have normal menstruation every year, and if one of their menstruation periods is suddenly delayed, it is mostly caused by pregnancy. If the menstruation is delayed for more than a week, but the test results are not pregnancy, then you must go to the hospital for further examination to see if there is endocrine imbalance or other gynecological diseases. After finding the cause, you must treat it well.

1. How long does it take for the menstrual period to be delayed to detect pregnancy?

1. Generally, pregnancy can be detected only after the menstruation is delayed for five to seven days. If the time is too short, the result of using the pregnancy test stick will be a heavy horizontal line and a vaguely visible horizontal line that cannot be seen clearly whether it is a real horizontal line, which makes it difficult to distinguish the true from the false.

2. If the menstruation is delayed by less than a week, you can use a pregnancy test stick to test. If you are indeed pregnant, you will see two bright red horizontal bars. After testing with the pregnancy test stick, if it is confirmed that you are pregnant, you should go to the hospital for a B-ultrasound examination, because a B-ultrasound can rule out the possibility of ectopic pregnancy.

3. The period of pregnancy should be calculated from the time after the previous menstrual period ends, and then calculated one month until the next period comes. This is the most appropriate way to calculate the period of pregnancy.

2. Methods of testing pregnancy

1. The first and most common method is to use a pregnancy test strip in the early stages of pregnancy. Using early pregnancy test paper, it can be detected at the first 7 days after having sex, usually 18 days, and rarely it takes 20 days to detect.

2. The second method is that because the body temperature of pregnant mothers changes, it is possible to accurately measure the temperature during ovulation, but the actual operation is more complicated and difficult to judge. Use the ovulation temperature measurement method to test, measure your body temperature in bed after waking up every morning. The body temperature at this time is called the ovulation temperature. Generally, the human body temperature is below 36.5 degrees before ovulation. After ovulation, the increase in estrogen will cause the body temperature to rise by 0.3-0.5 degrees. Therefore, if the high temperature curve of ovulation temperature lasts for more than 18 days, it can generally be confirmed that it is early pregnancy.

2. The third method is the most common method in hospital outpatient clinics, which is HCG testing in blood or urine. When a woman becomes pregnant, her body will produce a new hormone called human chorionic gonadotropin (HCG), which helps maintain pregnancy. This type of growth hormone can be detected in urine about 10 days after conception. When collecting urine samples, be sure to use morning urine, because morning urine contains higher levels of female hormones. In order to increase the positive rate of the experiment, you should try to avoid drinking water the night before. Pregnancy test is a blood test, so it can detect whether you are pregnant earlier than urine test (usually about 6 to 8 days after ovulation).