Naturally, women have the possibility of pregnancy about 20-25 percent in a single cycle of 20 years of age. That is, at the age of 20-29 years, at each cycle of ovulation, the possibility of becoming pregnant is 20-25 percent.
The sex itself has been formed since the merger of the cell (fertilization) between sperm cells with egg cells in the oviduct. Thus, the process of man is not in the womb, but at the end of the fallopian tube called the ampulla.
After the merger, can be considered all the basic ingredients of human has been formed. There was incorporation of chromosomes of mother and father’s chromosomes, including sex will also be formed. In the event of any abnormality, can already known.