Pregnancy can be determined by a blood test when the HCG concentration is >25 U/L, and the test needs to be conducted under the supervision of a doctor. Women who are preparing for pregnancy can have intercourse during ovulation under the guidance of a doctor to increase the chances of conception. Generally, pregnancy can be confirmed by testing the level of HCG (human chorionic gonadotropin) about 10 days after intercourse. When the HCG concentration > 25U/L is positive for pregnancy, it can be clear that you are pregnant, and you can also monitor the doubling of blood HCG to understand the development of the embryo. After confirming pregnancy with blood pregnancy test in early pregnancy, ultrasound must also be done to clarify normal intrauterine pregnancy. Early pregnancy should also pay attention to appropriate rest, according to the degree of early pregnancy reaction to adjust the appropriate diet, prohibit coitus, avoid engaging in heavy physical labor, on time prenatal examination.