The process of conventional IVF is as follows:1. Down regulation, the purpose is to inhibit the LH elevation and LH peak in the cycle of promoting superovulation, so as to make the egg development better and more synchronized, so as to make the egg retrieval go smoothly.2. Promoting superovulation, the use of medication to make multiple follicles in both ovaries mature and produce high-quality eggs.3. Monitoring the development of follicles, the ultrasound to understand the baseline condition of the ovaries and uterus, and to understand the number of growth follicles and their size in order to Adjust the dose of medication.4. Egg retrieval, 36 hours after the injection of HCG in the vaginal ultrasound guided or laparoscopic removal of eggs.5. In vitro fertilization and culture, after egg retrieval, the husband masturbates to retrieve sperm, sperm is processed and cultured with the egg, 12-18 hours after fertilization, and continue to develop into cells in culture.6. Embryo transplantation, after egg retrieval for 2-3 days, 2-3 embryos with the best development are singled out and sent back to the uterus.7. Luteal body support The embryo will continue to grow and develop in the body to achieve pregnancy.