The early pregnancy reaction usually starts to bleed around six weeks of pregnancy, such as dizziness, cold, weakness, drowsiness, loss of appetite, aversion to greasy food, nausea and vomiting, etc. The early pregnancy reaction usually disappears after the third trimester. Early pregnancy reaction varies from person to person, not all symptoms are present, and some people may not have obvious early pregnancy reaction, a few people will have breast swelling and pain. If you have regular menstruation, the gestational sac, fetal heart and fetal bud can be observed in the ultrasound examination after six weeks of menopause. It is recommended to increase the nutrition of three meals, eat lightly, ensure sufficient sleep and avoid stressful and strenuous activities. If you have frequent vomiting, cannot eat or have abdominal pain and vaginal bleeding, go to the hospital for examination and treatment in time to prevent miscarriage and other accidents.