If fertilization of an egg has not happened at the end of the second week, 3 week – the most favorable time for conception. Within 24 hours after ovulation, the egg meets the sperm in the fallopian tube, causing the conception of a new life inside the female body.

One or more of the male sperm cells penetrate to a woman’s egg and interflow with it. A zygote, a cell containing a complete double set of chromosomes, one from a man, the other a woman begins to develop inside a woman body. The sex and eye (hair) colour depends on the sets of mom’s and dad’s chromosomes.