A woman can test for pregnancy about 7-10 days after conception. After intercourse, the sperm and egg unite to form a fertilized egg, and about 7-10 days after the fertilized egg is laid in the endometrium, the trophoblast cells of the gestational sac secrete human chorionic gonadotropin. This hormone rises gradually with the number of days of pregnancy and can be detected by blood tests and urine tests to confirm the pregnancy. When the HCG rises slowly in the 1st week of pregnancy, it is difficult to detect changes with blood and urine tests. HCG continues to rise in the 2nd week of pregnancy, when a positive test can be detected by a blood test and a urine test may need to wait another 1 week. Therefore, blood HCG is more accurate and has less error compared to traditional urine HCG, and it is possible to advance the timing of the test. For the accuracy of pregnancy detection, doctors usually recommend an early pregnancy test with blood HCG, which can basically confirm the diagnosis at 7-10 days of pregnancy. Keep the air in the living room fresh, drink more water, eat more fresh vegetables and fruits, and eat less spicy and stimulating food. Avoid straining, avoid emotional excitement, keep your mood relaxed, ensure sufficient sleep, and also go to the hospital for regular maternity checkups.