The whole process of pregnancy includes the formation of a fertilized egg and its implantation.
After the semen is ejaculated into the vagina, the sperm will pass through the cervical canal, the cervix, and then into the lumen of the fallopian tube, where it will meet with the woman’s egg, undergo the acrosome reaction, and pass through the zona pellucida reaction so as to form a diploid fertilized egg, completing the process of fertilization.
About 6 to 7 days after fertilization, the embryo will implant in the endometrium, a process known as implantation of the fertilized egg, which is supported by estrogen and progesterone through three processes: localization, adhesion, and invasion.
The whole process of pregnancy is a delicate one, and any part of the process that is compromised may result in pregnancy failure. For those who need to get pregnant, they need to prepare for pregnancy under the guidance of a medical professional.