During pregnancy preparation, women need to eat a balanced diet and increase nutrition, especially foods containing more phytoestrogens, such as soy foods, black sesame and yam, etc. They can eat more soy milk, tofu and bean sprouts, which can supplement sufficient estrogen and progesterone to facilitate normal endocrine secretion in the body and promote the development and maturation of follicles to discharge eggs. At the same time, the normal secretion of estrogen and progesterone in the body can also promote the normal development of the endometrium to a sufficient thickness, which is conducive to the smooth implantation and development of embryonic tissues, so as to avoid endocrine disorders that can easily cause conditions such as non-ovulation and affect conception. If there is endocrine disorder and insufficient secretion of estrogen or progesterone, the endometrial lining may not be thick enough, which may affect embryo implantation or failure of implantation, thus affecting the success of conception.