Generally speaking, you can test yourself 7-10 days after intercourse. You can test your morning urine with a morning pregnancy test or a pregnancy test stick, and the longer the time after intercourse, the more accurate it is. In any case, pregnancy can be detected as early as one week after intercourse and as late as about three weeks after intercourse. There are many different ways to test for early pregnancy, and the testing time varies from one test to another. The most common methods to detect early pregnancy are early pregnancy test paper, basal body temperature test, ultrasound test and blood HCG test. 1. Time of pregnancy test The pregnancy test stick is one of the relatively simple and accurate ways. Generally speaking, the correct time to use a pregnancy test stick is 7-10 days after intercourse, and the best urine for testing is morning urine. The longer the time after intercourse, the more accurate the test will be. Some pregnancy tests claim to be able to detect pregnancy within 24 hours after intercourse, but this varies from person to person. To see a more accurate test, it is best to test 10-14 days after intercourse. Therefore, it is better to do the pregnancy self-test two weeks after the late menstruation period, so that the results will be more credible. The time of ultrasound examination The time of ultrasound detection of early pregnancy is usually about 1 week after the postponement of menstruation, you can go to the hospital for ultrasound examination to see if you are pregnant, if you can see the pregnancy halo under the ultrasound, it means you are pregnant. 3.Basal body temperature test for early pregnancy This test method can be said to be the earliest method for early pregnancy test and also the longest method for early pregnancy test, because daily measurement of body temperature should be insisted at least for 1-2 weeks. If the higher basal body temperature persists for more than 2 weeks, you should consider going to the hospital for a checkup because you may be pregnant. 4, the time of blood HCG to detect pregnancy Blood HCG to detect whether you are pregnant can generally go to the hospital around 8-10 days after intercourse to do blood HCG to check the level of blood HCG in the blood. At this time, the blood contains high HCG value, and its accuracy rate is more than 99%. 5.How many days is the delay of menstruation counted as pregnancy Generally speaking, the delay of menstruation for more than 7 days can be considered for an early pregnancy test to determine whether you are pregnant. However, there are other causes of delayed menstruation such as gynecological diseases, mental factors, excessive weight loss, and the influence of medication, etc. It does not mean that if your period is delayed, you are pregnant. There is no definite answer to the question of how many days a period is delayed to be considered pregnant. Pregnancy will definitely make your period stop, although the cessation of your period does not necessarily mean that you are pregnant. In the case of menstrual stoppage, to confirm whether you are pregnant, it is recommended to go to the hospital for a detailed examination. 6.How long does it take to detect the sex of a pregnancy At present, the most intuitive and can clarify the sex of the fetus is the ultrasound examination. Generally, the sex of the fetus can be known during the ultrasound examination at about 4 months of pregnancy. At the end of the 12th week of pregnancy, the external genitalia of the fetus are already developed, and at the end of the 16th week, the sex of the fetus can be determined from the external genitalia. Parents-to-be should be aware that although ultrasound can clearly reveal all organs and parts of the fetus, including the genitals, it is currently illegal to conduct fetal sex determination through ultrasound without permission under the law in China. 7, early pregnancy symptoms What are the symptoms of early pregnancy? Experts say that the most obvious symptom of early pregnancy is the cessation of menstruation. In addition, pregnant women will also have symptoms such as breast swelling, frequent urination, slight vaginal bleeding, etc. Some pregnant women also have nausea, headache, vertigo, emotional instability, etc. If you find the above symptoms, you should take an early pregnancy test in time, because you are likely to be pregnant.