Can I detect pregnancy after having sex for a week?

Women generally need to be checked after they become pregnant. The most common way is to use a pregnancy test strip to check whether they are pregnant about ten days after menstruation stops. Of course, it cannot be detected within a certain period of pregnancy. So, how long after having sex can pregnancy be detected? Let’s follow and learn more about it.

1. How long does it take to detect pregnancy after having sex?

After 14 days, you can use a test strip to test your morning urine to determine whether you are pregnant. After 40 days of amenorrhea, you can do an ultrasound to confirm it. Generally speaking, you can test yourself 7-10 days after having sex. You can test pregnancy by testing morning urine with early pregnancy test strips or pregnancy test sticks. The longer the time after sexual intercourse, the more accurate the test will be. In short, you can test whether you are pregnant within one week after having sex, or about three weeks at the latest.

Generally speaking, in the early stages of pregnancy, women will experience a series of early pregnancy reactions such as dizziness, nausea, sleepiness, and breast swelling. These reactions usually become more obvious 10-14 days after pregnancy and disappear on their own after three months. Therefore, if a woman has the above symptoms, she can use early pregnancy test strips and pregnancy test sticks to test pregnancy.

The principle of pregnancy test is to test the hCG value, that is, the value of human chorionic gonadotropin. This hormone will be metabolized into urine through the blood circulation system of pregnant women. Early pregnancy test strip pregnancy test is a relatively convenient and easy way to detect early pregnancy. This type of hormone is produced by the embryo and usually appears in the urine immediately after a few days of pregnancy. However, due to the small amount, it is not easy to test it at the beginning, and it will become increasingly obvious from 10 to 14 days. Seeing a doctor for a blood test can also measure hCG levels and is more accurate.

It should be noted that although many early pregnancy test strips indicate that women can take a pregnancy test one day after missing their normal menstrual period, in fact, not all pregnant women secrete the same rate and amount of hCG hormone, which varies from person to person. If you do a urine test too early, a negative result may be incorrect.

Early pregnancy test strips and pregnancy test sticks are only the first step in pregnancy screening and cannot be used as a diagnostic method. In order to prevent ectopic pregnancy and ensure the healthy growth and development of the fetus, you need to see a doctor for further examination.

2. How long does it take to know the sex of the fetus?

Generally, the gender of the fetus can be known by B-ultrasound examination around the fourth month of pregnancy. At the 12th week of pregnancy, the fetal reproductive organs have already developed. At the 16th week, the fetal gender can be determined from the reproductive organs. During the examination, the fetal position should be considered. When the fetal position is better, the judgment is more accurate. Therefore, the fetal gender determination by B-ultrasound is affected by the doctor's experience and fetal position. Prospective parents should note that although B-ultrasound can clearly show every organ and position of the fetus, including sexual organs, the current laws and regulations in my country stipulate that it is a violation of discipline to privately conduct fetal gender identification and assessment through B-ultrasound.

In addition to traditional B-ultrasound examinations to identify the gender of the fetus, amniocentesis and chorionic villus sampling can also be used to determine the gender of the fetus. Amniocentesis is mainly used as an auxiliary test for Down screening and the diagnosis of some genetic diseases. It can detect whether the fetus has abnormalities in the sex chromosomes. The best time to check amniocentesis is between 17 and 21 weeks of pregnancy. However, pregnant mothers should remember that amniocentesis is an invasive test with a 1% risk of miscarriage. Pregnant mothers who do not need to undergo this test should not take this risk, and should not use this method to check the gender of the fetus.

Chorionic villus sampling is usually performed between 10 and 14 weeks of pregnancy. It is also used to confirm whether the sex chromosomes of the fetus are normal. Some people also use this method to test the gender of the fetus. However, this method is highly harmful and can easily lead to miscarriage. It can also easily harm the fetus, causing mutilation of its hands and feet. Therefore, for the healthy growth and development of the baby, it is recommended that prospective parents do not undergo this surgery simply to determine the sex of the fetus.