Most women do not have pregnancy symptoms during the first week of intercourse because the fertilized egg has just settled in the uterine cavity and the level of secreted hormones is still low and the uterus is not obviously enlarged, so most people do not have symptoms, and generally some women will not have symptoms such as nausea, vomiting and gastrointestinal discomfort until more than 40 days after menopause. Due to the high level of human chorionic gonadotropin in the body, this hormone can inhibit the peristalsis of the stomach and intestines so that food stays in the stomach for too long. In addition, some patients may also experience frequent urination due to an enlarged uterus, and some women may experience breast pain due to increased hormone levels.