Embryo Banking Australia

A successful pregnancy goes through many distinct stages. A man's sperm should reach, penetrate, and fertilize a woman's egg. The resulting cell must divide and form a blastocyst. The blastocyst much reach the uterus and implant in the mucous membrane. The established blastocyst continues its development into an embryo then a fetus.
At any point during this process issues can occur that interfere with a successful pregnancy.

Fertilization
Fertilization is the union of the feminine gamete (egg) and the male gamete (spermatozoa). whether or not it happens naturally within the feminine reproductive system or with the help of reproductive technologies outside of the physical body, the product is a structure referred to as a zygote.
When a woman is ovulating she releases one egg into her Fallopian tubes (or additional in the case of fraternal twins). throughout this time, a woman's cervical mucus will thin, in preparation for sperm to pass through more effectively.
Following spermatozoa ejaculation within the vagina, special secretions facilitate them to swim through the cervix towards the uterine tube where fertilization takes place within 24-72h1.
The fertilized egg or zygote then begins to maneuver toward the uterus, because the cells divide into the next stage, a blastocyst.

Problems with Fertilization
There are a wide range of issues that may prevent fertilization, however all of them have the same outcome. one thing is stopping sperm and egg from reaching one another.
Absence of Sperm/Egg: If a woman has an annovulatory cycle where she does not release an egg, or if no sperm reaches the egg because of azoospermia or low sperm count, then fertilization will not occur.
Sperm's Ability to reach the Egg: Poor sperm motility or movement, or poor chemotaxis� (sperms ability to navigate toward the egg) will cause issues. Similarly, if a woman's cervical mucous secretion doesn't thin enough during ovulation, it's going to not let sperm reach the egg.
Sperm Penetration: Poor morphology, abnormal sperm form makes it more durable to penetrate an egg. sperm also depends on a chemical change, referred to as an acrosome reaction, that helps it produce a hole within the egg to pass through. Poor or incomplete acrosome reaction may also inhibit fertilization.