Fertilization of the egg does cause an increase in body temperature, with the difference between high and low temperatures usually being around 0.3°C-0.5°C. Fertilization usually begins on day 6-8 after fertilization and is completed on day 11-12. In addition to the rise in body temperature that occurs after successful implantation, women may also experience an absence of menstrual periods, as menopause is the earliest and most important “sign” of early conception. Some women may also experience a change in appetite, not liking the food they normally like to eat, or “picky eating”. In addition, there may be nausea and vomiting in the early morning or on an empty stomach. She may also experience breast pain and enlargement, dizziness, fatigue, drowsiness, a significant decrease in energy, and an increase in urination. Therefore, after the fertilized egg is laid, women should avoid intercourse and vaginal medication, and should also get enough sleep and be happy, avoid strenuous exercise, heavy lifting and overexertion.