Conception: When and How It Occurs

Conception: When and How It Occurs

Conception takes place during the woman’s fertile period. It occurs when a female and a male sex unit are joined and fused – the egg and the sperm.

Table of Contents

Conception Process

The conceiving usually occurs somewhere between two menstrual cycles, during ovulation, when the ovaries release egg cells that go through the Fallopian tube to the uterus. If the woman has a regular sex life, it is impossible to say at what date she is exactly conceived.


In the middle of the woman’s menstrual cycle, about 2 weeks after the previous or 2 weeks before her next period, a mature egg is released from her ovary and travels through the Fallopian tube to the uterus for 2 to 3 days, then the egg is ready for fertilization. This is the time of ovulation and it lasts between 12 hours and up to several days.

Sexual Intercourse

If a woman has sexual intercourse when she is fertile and neither she, nor her partner have taken contraceptive measures to prevent the fertilization, then several million spermatozoa reach the uterus through its opening-the cervix. They move in the direction of the released egg, in order to reach and fertilize it.


Many spermatozoa die on their way because of the vagina’s acidic environment, but only one is enough to fertilize the egg. The sperm that enters the uterus can survive for 5 days maximum before being disintegrated from the woman’s immune system.

More sperm cannot fertilize an egg, because after the penetration of the first one, the fertilized egg instantly produces an impenetrable membrane and prevents others from entering.


After the egg is fertilized by the sperm, their cores fuse into one and their substances are merged, commencing the pregnancy of the woman.

The sperm and the egg are carrying chromosomes that contain the genes – carriers of the characteristics of the woman and the man. In the newly formed nucleus – the conception of the new life, each hereditary feature is represented with two genes, one of the man and another of the woman. Sometimes one will prevail, another time, the other, but each inherited trait is the result of their combination.

The Beginning of Child’s life

The child’s life does not start from its birth; the child’s life begins from its conception date. It is customary to say that the child’s age is being counted from the day of its birth. But this is wrong.

When the child is born, its age is not zero, it’s about 280 days or 40 weeks. It is pointless to discuss when the baby comes to life during the pregnancy, while it is still an embryo inside the mother’s womb. It does not become alive, because at the very birth it is already alive. The child’s life after birth is not the beginning of anything new, it is only a continuation of life outside the mother’s body.

However, it is okay to determine the age of the child after the date of birth. This is definitely and universally accepted. The true beginning of life – the conceiving of the child or the beginning of the pregnancy, can almost never be established with certainty.


The date of conception can be known with certainty only if the woman had one and only one sexual intercourse and then became pregnant.