What are the symptoms at the beginning of pregnancy

The symptoms of early pregnancy are: menstrual delay does not come, breast will feel obvious pain, appetite reduction, smell the smell of oil smoke will show nausea and vomiting, frequent urination, abnormal increase in leucorrhea and other early pregnancy conditions. Generally, women's hormone levels will continue to increase after pregnancy, and hcg and progesterone will also increase, and gastrointestinal dysfunction, gastric acid secretion will decrease, thus causing early pregnancy reaction. Early pregnancy reaction generally disappears at about 12 weeks.