Non-Identical Dizygotic Twins

Non-identical Byzygotic Twins

For mothers who desire twin pregnancies, let’s first get to know non-identical dizygotic twins.

Pregnancy with two children at once is becoming more common, especially because more women undergo fertility treatments and get pregnant at a mature age.

The presence of two babies in one family is an incredible gift and is often considered a double blessing. 

For mothers desiring twin pregnancies, let’s understand this type of twin pregnancy, which is a dizygotic twin pregnancy.

What Are Dizygotic Twins? 

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Dizygotic twins, also known as fraternal twins, are a type of multiple birth where two separate eggs are fertilized by two different sperms during the same pregnancy. 

This means that dizygotic twins have different genetics from each other, similar to regular siblings born at different times. 

They are not genetically identical. Dizygotic twins often have different physical characteristics and not always the same gender. 

Dizygotic twins are the most common type of multiple birth, following monozygotic twins, which are rarer, where two babies originate from the same egg cell.

How to Have Dizygotic Twins?

Mothers might ask, “How can I have dizygotic twins?” The answer lies in genetic factors. Dizygotic twin pregnancies more commonly occur in families with a history of twin pregnancies, especially on the female side. 

This is because the genetic predisposition in women can make them release more than one egg during their menstrual cycle. This is the initial step necessary for the occurrence of dizygotic twin pregnancies.

Here are some other factors that can increase the probability of having multiple pregnancies. Mothers have a higher potential to conceive more than one baby at a time if:

  • They are of advanced age (being in their 30s is more likely to experience multiple pregnancies because the body tends to release more eggs as it gets older).

  • They have a family history with twins or come from families with twin descendants.

  • They use fertility drugs.

  • They have above-average height or higher body weight.

The most significant factor in the likelihood of multiple pregnancies is genetic factors. There is an increased risk of multiple pregnancies if they themselves are also a twin or have twin descendants in their family.

Twin Pregnancy Through Medical Procedures

With the advancement of medical technology, for parents wishing for twins, it can be achieved through pregnancy programs conducted by doctors using various methods as follows: 

  1. Twin Pregnancy Program with IVF

In Vitro Fertilization (IVF) is a medical technology that assists couples in getting pregnant. The process involves several stages:

  • First, the woman’s eggs and sperm are collected and united in a laboratory.

  • The eggs and sperm are then combined in a special container to form an embryo.

  • The doctor then places these embryos back into the woman’s uterus for implantation and development into a baby.

  • To increase the chances of having twins, multiple embryos can be transferred back into the uterus.

  1. Twin Pregnancy Program with Fertility Drugs

Fertility drugs designed to enhance fertility generally work by increasing the number of eggs produced by a mother’s ovaries.

The more eggs produced, the greater the chance ofgetting pregnant with twins. This occurs when more than one egg is released and fertilized simultaneously.

  • Clomiphene is one of the fertility drugs that increase the likelihood of getting pregnant with twins. This drug is taken in pill form, and the dosage is adjusted according to individual needs. Clomiphene works by stimulating the body’s hormones to trigger ovulation.

  • Gonadotropin, another fertility drug given via injection. 

    Both of these drugs are considered safe and effective, but like other medications, their use can have risks and side effects. It’s essential to consult with a doctor regarding the benefits, risks, and appropriate use of these medications before deciding to use them. Always remember to carefully follow the doctor’s instructions.

Preparation and Care for Dizygotic Twin Pregnancies

Dizygotic twin pregnancies, although not the most complicated, still require special attention and good medical care. Because these babies have different genetics, they can have very different physical characteristics.

Therefore, it’s always important to receive careful prenatal care and adhere to the doctor’s recommendations.

It is also important to prepare oneself emotionally and physically. Twin pregnancies may have a higher risk, such as preeclampsia and limited fetal growth.

Therefore, it’s crucial to maintain a healthy diet, exercise as per the doctor’s advice, and undergo regular check-ups are essential steps to keep the pregnancy healthy.

That was an explanation about dizygotic twin pregnancies, for mothers who might desire twin pregnancies, it’s worth consulting a doctor about the twin baby program through in vitro fertilization (IVF) or the use of drugs.

Hopefully, all mothers desiring twin pregnancies can experience this happiness someday. For information about pregnancy programs, infertility treatments, and more, parents can read on Bocah Indonesia’s website.


  • Xue, Y., Li, K., & Zhang, S. (2020). The Effect on Twinning Rate of Transferring Double Vitrified-warmed Embryos in Women of Advanced Reproductive Age: A Retrospective Study. Peer Reviewed Journal, 8, pp. e8308.
  • National Health Services UK (2019). Pregnancy. Pregnant with Twins. Diakses 2023.
  • National Institute of Health (2022). MedlinePlus. Is The Probability of Having Twins Determined by Genetics?. Diakses 2023.
  • U.S. Department of Health & Human Services (2021). Office on Women’s Health. Twins, Triplets, and Other Multiples. Diakses 2023. 
  • Marcin, A. Healthline (Update 2023). Seeing Double: How to Increase Your Chances of Having Twins. Diakses 2023. 
  • Gurevich, R. Verywell Family (2021). What are My Chances of Having Twins?. Diakses 2023. 

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