Ramzi Theory: Predict Your Baby’s Sex With This Easy Method


Finding out a baby’s sex can be important for some parents. Knowing whether you are carrying a boy or a girl will allow you to be well prepared for different challenges. Usually, a baby’s sex is determined between 16 and 20 weeks in pregnancy via a structural ultrasound. However, Dr. Ramzi had another theory and claimed that the baby’s sex can be predicted only after 6 weeks of pregnancy.

The theory has been tested by Ramzi and his team but has not yet been approved by the medical community. It is based on the placenta’s position and placental villi. Ramzi also claimed that his method can predict the baby’s sex correctly 99% of the time.

The Origins of Ramzi Theory

The Ramzi theory is based on Dr. Ismail’s research. He tried to find a relationship between the location of the placenta’s formation and the baby’s sex. The research was done by looking at the laterality of chorionic/placental villi. The placenta is made up of these hairlike formations.

Pregnant women often discuss the Ramzi method. It is not uncommon for moms to take screenshots of their early ultrasounds which they later post to see if their baby’s sex can be guessed by someone using the method.

However, this sex-determining method is yet to be confirmed by peer-review research. In short, a peer-reviewed journal is a scientific journal with the latest science experiments explained and presented so other doctors and scientists can review and validate them.

A research paper published in 2011 online on a medical-related website was where the Ramzi theory was first mentioned. However, the author’s affiliation or name is not mentioned in the paper. The theory was later attributed to Dr. Saad Ramzi Ismail. Still, it is unknown who this doctor is and what his credentials are.

The above-mentioned website describes itself as an online community for medical professionals. It is owned by a media company. However, this website is not accepted as a peer-reviewed medical journal. Other medical experts and scientists still have to validate the research to accept it.

The research was done on more than 5000 women according to the paper. They were all 6 weeks pregnant and the researchers were checking on which side of the uterus was placenta forming. The women were checked again via ultrasound when they were 18-20 weeks pregnant to check for the baby’s sex.

The baby’s sex corresponded with the location of the placenta according to the paper – left for a girl, right for a boy – 99% of the time.

Does it Work?

The correct answer is – we are not sure until further research fully examines and confirms this theory. Unfortunately, no further studies were done on predicting sex as early as 6 weeks by using the placenta’s location. This is why most doctors remain skeptical about the method.

Doctors across the world say that the theory is too good to be true. An embryo begins to form sex organs when a woman is 4 weeks pregnant. According to doctors, finding out baby’s sex only two weeks after the formation of sex organs would be amazing. However, since there is no formal research the 99% accuracy rate is thrown away. It would be really good for parents if this was true since they could prepare adequate toys, cribs, and crib sheets even before their baby is born.

Proven Ways of Determining Sex During Pregnancy

The best way to find out your baby’s sex is via ultrasound after 16-20 weeks. These mid-pregnancy ultrasounds can determine whether you’re having a boy or a girl with almost 100% accuracy. The sonographer will be able to see your baby’s genitals at that point since they would be developed enough. However, babies sometimes hide their genitals and you maybe won’t get what you want.

Other prenatal tests are able to tell you about your baby’s sex. But, these are usually available only for moms who might be carrying a child with a chromosomal condition. The tests are:

  • Amniocentesis: To do the test, a doctor will have to take a sample of your amniotic fluid. This is the fluid that surrounds your baby in the uterus. It is usually done to detect chromosomal abnormalities between 16 and 20 weeks. Amniocentesis can tell you your baby’s sex, but you will be having a slight risk of miscarriage.
  • Noninvasive prenatal testing: This is a common blood test that we use to detect Down syndrome. Other chromosomal diseases can also be detected with this test at 10 weeks. It can also predict a baby’s sex with 99% accuracy.
  • Chorionic villus sampling: The doctor will have to take a sample of cells from your placenta to do this test. The samples will then be sent to a lab for further analysis. The CVS is usually done between 10-13 weeks. Same as Amnio, this test comes with a slight risk of miscarriage, but it can predict your baby’s sex and chromosomal abnormalities.

Common Thoughts on Ramzi’s Method


Doctors usually say that couples know not to make rash decisions while the embryo is only 6 weeks old. The Ramzi theory is not proven, but you can always try guessing. It is recommended to use one of the accepted genetic tests if you have any concerns about genetic abnormalities based on sex.

Checking the baby’s chromosomes has always been the most accurate way of determining sex. The above-mentioned invasive tests have traditionally been done and have shown great results for both determining the sex and chromosomal abnormalities.

You can also try a noninvasive maternal blood test. This is a new method and some experts say that it can determine a baby’s sex after only 9 weeks. It holds no risk to maternal or baby health and it is usually cheap.

The main reason people perform this test is to check whether their baby has any chromosomal disorders, especially down syndrome. The test will only be done to determine a baby’s sex specifically if there’s a concern for sex-linked disorders.

However, you can harmlessly try to guess with your parent your baby’s sex using the Ramzi method. Take a picture of your ultrasound and see where the embryo is located. Be aware that if the embryo is on the left side of the picture, that means that it is located on the right side of your womb – which means it is a boy according to the method. To make it easier, maybe try mirroring a picture so you have a clear view of your baby’s location. Don’t be afraid to make predictions like this, just remember not to take any huge steps.

Baby Planet Overview

Ramzi theory is not a proven method of determining a baby’s sex. We still wait for a peer-review journal to publish the research so other scientists and experts can validate it. Until then, the best way you can check whether you are carrying a boy or a girl is to wait for an ultrasound when you are 18-20 weeks pregnant. Your doctor should be able to tell you about your baby’s sex then.

However, you can try guessing before that using the Ramzi method, but you are not guaranteed that you will be right. Consult with a doctor if you doubt your baby might have a chromosomal or sex-related abnormality.

More Baby Reviews:


  1. Can Ramzi’s theory be trusted? babyprepping.com
Hello Mother's and Father's of the world. My name is Sarah Nielsen is this is my passion MyBabiesPlanet.com, as I am a mother of two beautiful babies and they are my world. Also I love blogging and sharing my experiences of what has worked for me when raising my kids. When I'm not juggling the madness at home, or working on my blog. You will find me product researching and keeping the site freshly updated with the latest baby gear and helpful articles for my readers!