In vitro fertilization takes about 16-18 days at the earliest, because in vitro fertilization is performed according to the normal ovarian physiological function, not today’s medication can be formed tomorrow. Usually a vaginal ultrasound is performed on the 3rd-4th day of menstruation to determine the number of basal follicles, and depending on the situation, oral medication or intramuscular injections are given to promote the growth of follicles. The whole process of follicle production will take about 10-12 days, and when the follicles are mature, egg retrieval can be performed, while some women may feel more painful during egg retrieval, painless egg retrieval can be used to reduce the pain during egg retrieval. Generally, the whole IVF process will take 1-2 months, because after the egg retrieval, there will be a transplant including a pregnancy test, and at the same time, you can work during the IVF process, so you don’t have to take special leave to avoid the psychological burden, which will affect the pregnancy more easily.