How many days before menstruation can you detect pregnancy

For a normal woman, menstruation can not only reflect the physical health, but also whether she is pregnant. Pregnancy is not a happy thing for many people. Not only that, it will also cause some troubles. For many people, it is important to know when to detect the pregnancy status. So how many days before menstruation can we detect the pregnancy status? Let's take a look.

How many days before menstruation can you detect pregnancy

The shortest time it takes to detect pregnancy through menstruation is one month into the pregnancy. If the menstruation is delayed, it can be detected only after more than 40 days. If the pregnancy test stick shows two lines twice, it means you are pregnant. The mother may ovulate and implant early. Some mothers can detect it during this period, while some mothers may need to use the pregnancy test stick later to detect it.

The working principle of early pregnancy test paper pregnancy self-test is to detect HCG value, that is, the value of human chorionic gonadotropin. This hormone is produced by the placenta and usually appears in the urine a few days after pregnancy. However, due to the small amount, it is difficult to test it at the beginning and it becomes increasingly obvious after 10 to 14 days.

What are the pregnancy test methods?

1. Measurement of basal body temperature. Measure your body temperature in bed every morning after waking up. The temperature at this time is called basal body temperature. If you are pregnant, progesterone levels remain high, keeping your body temperature high as well. If the high temperature curve phenomenon in the basal body temperature persists for more than 18 days, early pregnancy can generally be confirmed.

2. Early pregnancy test paper. On the seventh day of a woman's pregnancy, a specific hormone, human chorionic gonadotropin (HCG for short), can be detected in her urine. Its function is to help maintain pregnancy.

3. Ultrasound examination. Using B-ultrasound to diagnose early pregnancy is the most accurate and reliable method. On the B-type ultrasound screen, a circular halo can be seen in the uterus, also known as the pregnancy ring. The dark area inside the ring is amniotic fluid, and rhythmic fetal heart beats can also be seen in it.

Pregnancy is a happy thing for every girlfriend, and they want to know whether they are pregnant as soon as possible. Therefore, after the above introduction, it can be seen that using pregnancy test sticks can detect whether you are pregnant as early as possible, and there are many items for pregnancy examination. You can go to the hospital for an ultrasound, or you can take a blood test to see if you are pregnant. If you are confirmed to be pregnant, you should pay more attention to rest and eat nutritious food in your daily life.