Diagnosis of intrauterine pregnancy can be confirmed mainly through symptoms and signs and pregnancy test, ultrasound and other auxiliary examinations. 1. Symptoms and signs: including menopause, especially more than 10 days after menopause; early pregnancy reaction, including coldness, dizziness, lack of appetite, etc.; gynecological examination may appear blue-purple vaginal mucosa and other signs of congestion. The above can be a preliminary judgment of pregnancy. 2. Auxiliary examination: (1) Pregnancy test: mainly through the detection of blood or urine HCG (human chorionic gonadotropin) to detect pregnancy. (2) Ultrasonography: Ultrasonography is the main method to confirm intrauterine pregnancy by seeing fetal sacs or germs in the uterine cavity and primitive heart tube pulsation. It can be seen around 6 weeks of pregnancy. Meanwhile, ultrasonography can also rule out trophoblastic diseases and pelvic masses. Prompt medical consultation and diagnosis is recommended if needed.