The Selnas method enables a couple to choose the sex of a baby with a high degree of accuracy, ~98%. There is no surgical procedure involve, no pills to consume and no special diet to follow. All the couple has to do is to follow a chart to attempt conception during the favorable period.

How does it work?

The male sperm carries the chromosome X or Y whereas the female ovum carries the X chromosome. These chromosomes determine the baby’s sex or gender.

When a Y chromosome carried by the sperm unites with the ovum, the result is a XY chromosome producing a baby boy. To produce a baby girl, the X chromosome carried by the male sperm unites with the ovum resulting in a XX chromosome.

The theory

Research data shows that there is a charge on the ovum membrane. This charge can alternate in a cycle, from positive to neutral and to negative charge. This is known as the ‘Polarity Cycle’ of the ovum membrane.

There are about 70 days per year for each polarity meaning there are 70 days for the chance to get a boy and 70 days to get a girl. The balance of 200 days gives you a 50:50 chance of getting either gender.

There is also data showing that the male sperm carrying the X chromosome is attracted to a positive charge. On the other hand, a sperm carrying the Y chromosome is attracted to a negative charge.

Baby boy: The sperm carrying the Y chromosome (positive charge) is attracted to the negatively charge ovum membrane.

Baby girl: The sperm carrying the X chromosome (negative charge) is attracted to the positively charge ovum membrane.

If the ovum is neutral, there is either a 50:50 chance of getting a boy or a girl.

The couple’s responsibility

The couple will be given a Selnas conception chart that gives the recommended dates to attempt conception. Below is my conception chart when I attempted to try for a baby girl in 2006. Notice that the color is pink for a girl. You will get a blue chart if you wanted a baby boy.

Selnas Conception Chart (Baby Girl)

I got my chart by visiting a Selnas center and was asked to fill up a simple agreement form. Some of the questions asked were my blood type, date of birth, date of menstrual cycle and the age when I had my first period. It was only a one page questionnaire. At the end, I signed the form and paid the required fee. The form was sent to the laboratory in France and about a week and a half later, I went to pick up my chart. The chart is my personal chart to attempt conception on the days that are favorable to get a girl.

The difficulty I faced

I discovered that the favorable periods or dates sometimes do not coincide with my fertile days or ovulation period. It was suggested that I can alter my menstrual cycle by taking a doctor prescribe pills called Ethynyl oestradiol. Examples are Loestrin 20, Loette, Meliane or Mercion. I am supposed to take the pills 35 days before the dates of the favorable days. By doing this, I can ensure that my fertile period or ovulation days will coincide with the favorable days. Since I hated to take medicines of any kind, I decided to avoid taking the pills.

To cut my own story short, the first time I got my chart in 2005, I did not manage to conceive. I went for a second try and I was offered a 50% discount on the fee. I was successful the second time round and gave birth to my daughter in late 2006. I was informed from the beginning and it was stated in the agreement form that there will be a full refund if I happened to give birth to the wrong gender. Luckily I did not have to go for the refund.

My precious daughter

To learn more about the origin of Selnas and for more information, check out the websites below if you and your partner have a desire to choose the gender of your child.

www.selnas.com (International)
www.choicebaby.com (Malaysia & Singapore)