Fertility is being incapable of having children or getting pregnant through the normal sexual practice.   Fertility rate is used to determine the number of children born per couple, person or populace. Fecundity is different than fertility rate which is defined as potential for reproduction. Infertility is deficient fertility.it is the inability to be with child.  Human fertility depends on factors of nutrition, sexual behavior, culture, instinct, endocrinology, timing, economics, lifestyle, and emotions.

Men and women have hormonal cycles which tell you when a woman can become pregnant and a man is virile. The fertility cycle of the female is estimated to be twenty eight days long, but the male fertility cycle is changeable. In any time of the month, a man can produce many sperms but the quality of it differs irregularly depending on his internal cycle.Age also plays a major role particularly for women.

A woman has to ovulate to be able to be with child.   A mature egg must be discharged from one of her ovaries and her male partner must ejaculate millions of mature, fertile sperm. As the sperm passes through from the ovary to the uterus, the sperm must be reach and break through the egg. The fertilized egg should be able to divide numerous times, implant in the uterus, and form the placenta that is its lifeline until birth.

Although women can get pregnant at any time during the menstrual cycle, fertility is at its peak a few days at the cycle.  Usually it’s two days before and two days after the ovulation date. The fertility window differs in every woman, same as the date of the ovulation does in every cycle of the same woman. It usually takes forty-eight hours for the ovule to fertilize after it is released from the ovary. The average period a sperm stays within the uterus is forty-eight to 72 hours and the maximum number of days is 5 or up to 122 hours.

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