What Are the Odds of Having Twins; a Complete Guideline for You

What Are the Odds of Having Twins; a Complete Guideline for You

What are the odds of having twins? Having twins fascinated the world from ages. They are present in certain myths and religions even they are also a matter of subject in science. Doctors do not fully understand the reason why twins’ pregnancy happens. However, there are some factors that increase the likelihood of giving birth to twins. In this article, we explore why twins pregnancy occurs and what are the factors that can make it to happen. 

How twins insemination happens

It is estimated that out of 250 pregnancies, only one can conceive twins. Insemination occurs when the sperm fertilizes an egg to form an embryo. Sometimes two eggs are present in the womb at a time the sperm fertilize both, and sometimes a fertilized egg is divided into two, and twins conception happens. There are two types of twins depending upon the situation these are

  • Identical twins
  • Non-identical twins(fraternal twins)

Identical twins

This type of pregnancy occurs when one single egg is fertilized into two. Identical twins are of the same gender, either both are boys or girls. Well, they do not look alike, but they share the same DNA.

The chance of having identical twins is infrequent 3 or 4 in every 1000 births. 

Non-identical twins

This type of pregnancy occurs when two different sperms fertilize two different eggs in the womb. Both fertilized eggs are implanted in the uterus for nine months. Fraternal twins are of a different gender; they may be both boys, girls, and maybe a boy or a girl. Unlike identical twins, they do not have the same DNA, or they do not resemble each other.

What Are the Odds of Having Twins

Fraternal twins are common after pregnancy treatment because doctors often placed two eggs in the womb to increase the chance of successful pregnancy.

Factors that increase your odds of having twins

As we discuss earlier, there are certain factors that increase your odds of having twins. These are as follow;


Your chance of having twins increases; if you have a family history of twins from your mother’s side or in-laws. Another reason may be hyper ovulation, in which the body frequently releases two eggs at a time. This is a fundamental condition of having non-identical twins. Hyper ovulation is due to genetics, which is passed down in your DNA from your parents.


If you are upper 30’s or 40’s then you hit the jackpot; means you have a higher chance of having twins. The reason is at this age, many hormonal changes are occurring, and you are near to menopause, so your body releases more than one egg.

Fertility treatment

Fertility treatments are done to increase the chance of pregnancy. These treatments may include some drugs which stimulate ovulation, and more than one egg is released, and you have chances of twins. 

Sometimes healthcare professionals implant more than one egg in the womb for a successful conception. In this case, sperms fertilized both at a time, and you are the mother-to-be of twins.

Odds of having twins

What are the odds of having twins? Being a parent of twins is not easy; it leads to many serious complications. For example

  • It leads to premature birth
  • Stillbirth
  • Disabilities at birth
  • Increase the chance of C-section delivery
  • Need bed rest while gestation period

There is no way to improve the odds of twins. The woman knows early that she conceived twins in ultrasound. Some other symptoms include rapid weight gain and intense morning sickness. Regular medical checkups reduce the odds of twins and improve the chance of a healthy pregnancy.