Pregnency

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Will This Be A Boy Or Girl ?

Physiology of Reproduction



Having babies is believed to be one of the natural actions and steps in one's life that is often taken for granted. Sexual intercourse without any protection can lead to pregnancy. Pregnancy can be a root of great joy and achievement if it is desired and comes at the right time. That is why planning for a baby is often recommended.


The basic biology that is involved in reproduction is that:

When the male sperm meets the female ovum at the right time (midcycle or ovulation time) and at a right place (in fallopian tube) a pregnancy will take place.

The fusion of the sperm carrying genetic material either 23 X, or 23Y and the ovum carrying genetic material 23 X leads to the formation of zygote.

Depending on the type of sperm either a male child (46XY) or a female child (46XX) will result.

Will this be a Boy or Girl ?



Millions and millions of sperms are released when a man ejaculates in which about half of them have a gene that can result in a boy and the other half of them have a gene that could produce a girl. 

It is possible that the developed ball of cells to split up until the end of week 4. If this splits into 2,
identical twins may develop. It is also equally possible for 2 eggs to be released at the time of ovulation and result in fraternal (not identical) twins if both the eggs get fertilized by sperms and implant in the uterus.

Both the man’s sperm and woman’s egg play an important role in
determining the gender of a baby. Every normal human cell contains 46 chromosomes (23 pairs of chromosomes) except for the male sperm and female eggs (They contain 23 chromosomes each). When a sperm fertilizes with an egg, the 23 chromosomes from the father join with the 23 chromosomes from the mother, making 46 in total.

X and Y chromosomes

A fertilized egg contains 1 sex chromosome from mother and 1 from father. The sex chromosome from a mother’s egg is always the same and is the X chromosome, but the sex chromosome from the father’s sperm may be an X or a Y chromosome.

If an egg is fertilized by a sperm containing an X chromosome, the baby is a girl (XX) and if the sperm contains a Y chromosome, then the baby is a boy (XY).


Note: Note that it is the father and not the mother who is responsible for the either sex of the child

Selecting the Sex of a Child


There are many medical and non-medical ways to plan the sex of a child, but none of them have proofs to achieve so. However, by practicing them one may improve the odds.

Scientific Base of the Sex of a Child



A fertilized egg contains 1 sex chromosome from mother and 1 from father. The sex chromosome from a mother’s egg is always the same and is the X chromosome, but the sex chromosome from the father’s sperm may be an X or a Y chromosome.

If an egg is fertilized by a sperm containing an X chromosome, the baby is a girl (XX) and if the sperm contains a Y chromosome, then the baby is a boy (XY).


NOTE: The sex of the child entirely depends on ‘FATHER’ and not the mother.

Articles you may be interested in:


How Pregnancy Happens

How to get Pregnant

The best time to get pregnant

Prepare your body for pregnancy

What is PGD ?

Importance of food safety during pregnancy

Women Who Needs Special Care During Pregnancy

3 Ways Of Planning A Sex Of The Baby