Medical research-The Egg Cycle Method

2. The Electricity of Love: The CHOICE Method of Gender Selection

Scientist Dr. Stolkowski's is thought to have been at the forefront of the most accurate system yet of safely choosing the sex of your child. And using Dr. Stolkowski's research as his base, European biologist Patrick Schoun discovered that the membrane surrounding a human egg emits a kind of electrical "charge" that attracts either the X or Y sperm. He also found that at specific times in a woman's monthly cycle, her egg is electrically "charged" to attract either the X or Y sperm exclusively. In addition, he also noted a clearly "neutral" time in the cycle when the electrical charge surrounding an egg is totally dependent upon environmental factors.

In addition, Schoun defined the time frame which the egg is electrically charged one way or the other can range from one to ten days in a calendar month and can change from month to month. So, for example, in January you may have ten consecutive days on which your egg is charged in a way that attracts the X sperm, while in February, you may have only three days when this occur. So, by coordinating your most fertile time, (the six days before ovulation) with the days when your egg is attracted to either the X or the Y sperm, you can plan sexual relationship to coincide with the conception with either a boy or a girl.

3.  Selna Method

A scientific variant of the gender calendar works on the basis of the energy of both the egg and sperm and this energy varies according to a specific cycle. One, a study has reported a success rate of 98.7% with this method in 1994, while a 96 to 98 percent success rate was reported in 1999.

This method is affected by a woman's menstrual cycle and will not work if the woman has taken ovulation pills or other fertility drugs. The method is not affected by any miscarriages that may occur, making the calendar reusable for the next cycle. 

4. "Female control: sexual selection by cryptic female choice" by William G.Eberhard.

5. "Female control of paternity" by Tim Birkhead and Anders Møller.