With the advancement of modern science and technology, infertility can be solved by using the method of in vitro fertilization to achieve successful conception and successfully give birth to the child that belongs to both husband and wife. However, in order to complete in vitro fertilization, the first step is to induce ovulation in women and ejaculation in men. So when is ovulation induction?
In general, hospitals will determine the timing of male ejaculation based on the growth and development of follicles during the female ovulation process. This ejaculation mainly refers to the last ejaculation of male sperm before egg retrieval. Normally, male sperm is stored for about seven days when its vitality is at its best. Therefore, males can ejaculate once a week before egg retrieval, and then collect sperm for fertilization on the day of egg retrieval.
How to know when a woman ovulates? The most accurate and widely used examination method is to use B-ultrasound follicle monitoring. This method must avoid the menstrual period of women, and it is best to start monitoring one week after the end of menstruation, about every two days. Let the doctor observe the development and growth of female follicles. Once the follicles mature and turn to the ovaries, eggs can be retrieved, and the male should be notified to retrieve sperm for the next step of IVF technology.
After the egg and sperm are removed, they undergo a certain special washing process before being placed together in a culture vessel for natural fusion. After several days of successful fertilization, the doctor will transfer the embryo back into the female uterus and provide luteal supplementation and support to promote and stabilize the development of the embryo. It can only be stopped 3 weeks after the fetal heart rate is detected by ultrasound. It is important to measure serum HCG 14 days after embryo transfer to determine pregnancy.
