Precautions before egg retrieval: 1. Night injection: bring the night injection and the injection sheet to the injection room on the second floor of the emergency clinic for subcutaneous injection of Eze; 2. 60mg of progesterone is injected intramuscularly every day from the day of egg retrieval until the pregnancy test 12 days after transplantation, or 1 vaginal plug of certolone every day after transplantation and 1 oral tablet of Daphne each in the morning and evening; 3. 3 bags of douche saline to the nurse at the front desk for vaginal douching; 6, determine whether to do 1st or 2nd generation IVF; 7, make sure to arrive at 8:00 am on the day of egg retrieval, you cannot be late. Precautions after egg retrieval: 1. drink plenty of water and urinate in time; 2. rest for 2 hours after surgery; 3. no intercourse after surgery; 4. go to emergency gynecology clinic in time if you have abdominal pain or heavy vaginal bleeding; 5. inject progesterone in our injection room after egg retrieval; 6. go to the second floor of emergency clinic for infusion after progesterone injection; 7. come to the center at 8:00 am 2-3 days after egg retrieval to prepare for transplantation, get an ultrasound done by the doctor before transplantation, and then drink water 8. The couple should bring their ID cards on the day of transplantation; 9. Dizziness and nausea may occur on the day of egg retrieval, which are normal reactions to drugs and will disappear after 2-4 hours of rest. Instructions for transplantation: 1.Women should come to the center at 8:00 on time to change clothes and prepare for transplantation; 2.After transplantation, you can go home after 2 hours of rest in the lounge; 3.Avoid strenuous exercise and prohibit intercourse after the operation; 4.Come to the center 12 days after transplantation for a follow-up ultrasound to confirm the clinical pregnancy; 5.If the pregnancy has been confirmed, come to the center 2 weeks later for a follow-up ultrasound to confirm the clinical pregnancy, such as 3 or more fetuses must be reduced; 6.If there is If there is a small amount of vaginal bleeding, come to the center in time; 7. After transplantation, pay attention to rest, less strenuous exercise, eat more fresh vegetables and fruits, avoid colds, diarrhea and constipation.