Not sure what you mean but if it is when in the menstrual cycle it is usually about 2 weeks before the next period.
5
No, you become fertile after your period. ITs called a menstruel cycle because you menstrate first, then ovulate.
In males, the testis become larger and can produce mature sperm. in males, the ovaries become fertile. Only fertile sperm and eggs can reproduce.
yes, you have to be fertile to become pregnant.
Most fertile is the superlative for fertile.
Women are most fertile about 14 days before the start of their period.
More than likely you are still fertile if you have PID.
more fertile, most fertile
The soil will become less fertile.
yes, if the girl is fertile.
He is 100% fertile at the time of birth. Fertility declines with age.
until menopause.