a unit of illumination, equivalent to 0.0929 foot-candle and equal to the illumination produced by luminous flux of one lumen falling perpendicularly on a surface one meter square. Symbol: lx. Also called meter-candle.
The fact is that there are only a limited number of days each cycle when a woman can get pregnant - the five days before she ovulates and the 24 hours after she ovulates. These six days are the only fertile days of a woman's cycle and they take into account the lifespan of sperm (5 days) and the lifespan of the ovum (24 hours).
Women who have 30 day cycles can expect to ovulate 16 days after the last period, which is 14 days before the next one. Therefore, it is not possible to get pregnant on the day before you get your period, the last day of your cycle.There is an important exception to this, however.Women who have irregular cycles cannot predict when will get their next period.herefore, it is not possible to get pregnant on the day before you get your period, the last day of your cycle. There is an important exception to this, however. Women who have irregular cycles cannot predict when will get their next period.