Pregnancy Blog

Pregnancy: Baby Gender Prediction with the use of the  Nub and Ramzi Theory.

You’re pregnant! Congratulations! Amongst all the celebrating, baby shopping and preparation there is just one thing on your mind…. What is the sex of your unborn baby? There are many baby gender theories circulating the web, however many have little or no proven studies to suggest they are anything other than old wives tales.

Gender Prediction: Nub Theory

what is the Nub Theory?

Between eleven and fourteen weeks’ gestation both male and female foetus’ have a penis-like protrusion and as such look very similar except for one special element – the angle of that protrusion.

A male foetal protrusion points approximately 30 degrees up relative to the backbone whilst a girls’ protrusion is below 30 degrees.

How accurate is the Nub theory?

The nub theory has increased accuracy the longer the gestation. A scan at eleven weeks may not reveal anything, at twelve weeks gestation the nub theory is approximately 75% accurate and just one week later at thirteen weeks it’s thought to be around 95% accurate.

Gender Prediction with Ramzi Theory

According to original research conducted by Dr. Saad Ramzi Ismaal which involved over 5,000 fetal ultrasound scans, fetus gender can be accurately determined as early as six weeks gestation based on the position of the placenta. It was found that 97.2% of the male fetuses had their placenta attached to the right side of the mother uterus while 97.5% of female fetuses were positioned to the left side of the uterus.

It is strongly advised for anyone who is interested in this gender determination theory to research the official study, which is available at, It is a great starting point to understand how this theory works and the origins of this theory.

Gender Prediction will determine the sex of your baby once you have uploaded the scan and submitted the required information, Results within 12 hours.