How long does it take for sperm to reach the egg?

As we all know, if a woman wants to get pregnant, she must have sex. Healthy sperm must enter the woman's body and combine closely with the egg to produce sperm-egg fusion. Many people are actually full of doubts about the whole process of sperm and egg fusion. So how long does it take for sperm and egg cells to fuse? What is the whole process of sperm and egg cells combining closely?

1. How long does it take for sperm and egg to fuse?

How long does it take for sperm and egg to fuse? The whole process of sperm and egg fusion is called sperm-egg fusion. Sperm-egg fusion takes about 24 hours. When an activated male sperm enters the zona pellucida of the egg, sperm-egg fusion begins. When the sex chromosomes of the sperm and egg fuse together, it means that sperm-egg fusion is in progress.

During intercourse, the male ejaculates into the female vagina. The male sperm moves forward with the help of the shaking of the tail end and quickly swims to the cervical canal. The male sperm releases protein dissolving enzymes to dissolve the cervical mucus and moves from the uterine cavity to the belly of the fallopian tube. At the final destination - the belly of the fallopian tube, it waits to fuse with the egg cell. It takes only a few minutes for the male sperm to reach the bilateral fallopian tubes from the vagina at the fastest, 4-6 hours at the latest, and generally 1-1.5 hours.

2. The whole process of pregnancy from male sperm to egg cell fusion

The whole process of sperm-egg fusion pregnancy: It takes about 24 hours for sperm-egg fusion. When an activated male sperm enters the zona pellucida of a secondary coil oocyte, sperm-egg fusion has just begun. When the sex chromosomes of the ovum pronucleus and sperm pronucleus combine together, it means that the sperm-egg fusion is in progress. During the cleavage and blastocyst production period, the somatic cells of the sperm-egg fusion undergo metabolic changes, and the trophoblast cells are covered by the protruding adhesions above the adjacent somatic cells.

Since the surface of somatic cells can transmit the natural environment to affect the test tube embryo, the changes in the surface of somatic cells can be described by the intake of nutrients, division, preparation for embryo implantation or mitosis. After 36 hours of sperm and egg combination in the bilateral fallopian tubes, they break down into 2 somatic cells, and after 72 hours, they break down into 16 somatic cells, called morula. On the 4th day after fertilization, the somatic cell mass enters the uterine body and continues to grow and develop in the uterine body. At this time, the somatic cells have broken down into 48 somatic cells and become blastocysts ready for implantation.

The blastocyst can metabolize a growth hormone to help the blastocyst embed itself into the uterine wall. On the 6th to 7th day after fertilization, the blastocyst has just begun to implant. The embryo implantation site is mostly in the upper 1/3 of the uterus. Embedding means that the test tube embryo has been placed and has just begun to produce embryos and create a baby.

The article explains in detail how long it takes for male sperm to combine with egg cells, and also introduces in detail the whole process of male sperm and egg cells combining closely. As a woman who wants to get pregnant, you'd better know the sperm.