I am not sure how this question is really a problem but I will tell you that there is an old wives tale that says you can determine the sex of a chick by the shape of the egg or by dangling a needle over the egg and observing the action. This sounds too me like a fable but you can choose for yourself.
Here is an excerpt from a website explaining these methods.
Sexing Chicks in the Backyard Flock
By R. Keith Bramwell, Extension Poultry Specialist for the University of Arkansas's Avian Advice - This article looks at accurate methods of determining the sex of baby chicks.
Many backyard flock owners wonder: When my baby chicks grow up, will they be boys or girls, roosters or hens, lay eggs to eat or crow endlessly in the early morning hours? Regulations against owning roosters within city limits may exist in some of the larger cities. Not wanting to watch roosters fight and possibly injure each other in the hustle to establish dominance in their little world, or simply wanting to have a flock of only hens to gather the eggs each day for the family to eat. These are some points that cause concern and are important for the backyard chicken grower who tries to sex their chickens before they hatch, or grow up in this case.
Old Wives Tales about Sexing
Sexing baby chicks is not an easy process. There are a few who would try to simplify the matter with old wives tales of how to sex baby chicks. One method often repeated is tying a needle or a weight to the end of a piece of string (if the subject to be tested is an expectant mothers stomach, use a wedding ring on a string) and hold it over the young animal. One interpretation of this method says that if the object rotates in a clock-wise circle, it is a male; if it rotates counter-clock-wise, it is a female.
Similarly, with the same object on a string held over the baby chick, the motion of the hanging object in any circular pattern indicates a female while movement of the object back and forth indicates a male. Success of this method has been reported to be as high as it will work every time to it works most of the time. In actuality, one should expect to be accurate about 50% of the time when determining the sex of baby chicks in this manner (accuracy may be slightly higher for inherently lucky individuals).
A second method is to observe the shape of an egg to determine the sex of the potential young chick to be hatched. One individual explained that the different sexes require different shaped eggs for optimum growth within the shell and that the hens body knows which sex the chick would be. Football-shaped eggs house boy chicks, and more oval or round-shaped eggs will house girl chicks. He went on to say he was nearly 100% accurate when sexing chicks by this method. In actuality, the shell of the egg is formed simply by the presence of any object within the oviduct.
As far as I know there is no true way too tell the sex by the egg otherwise hatcheries would be hatching out pullets at a much higher rate.