Its duration can be from 28 to 30 days. The calculation should be made on the first day of menstruation until the first day of the next menstruation. Follicle maturation, or blister containing egg occurs in the first half of the cycle.
Ovulation cycle time
By 14-15 day egg fully matures and leaves the follicle. The most optimal time for conception lasted no more than two days. But since sperm remain active for up to 4 days, the sexual act carried out for 4 days before ovulation can lead to pregnancy.
Calculation accuracy ovulation cycle time
Women with a stable cycle can produce timing. We should not forget that climate change, temperature, medication may modify the terms of oocyte maturation and its exit from the follicle, so focus only on the cycle time is not entirely rational. Especially such calculations should not be used by women with unstable cycles. To calculate the timing of ovulation can use more reliable and accurate methods.
Temperature test
This is the most popular method for determining ovulation in the home. How to do it? Immediately after the woman should sleep on a daily basis to measure the temperature in the rectum. In the first phase of the cycle the temperature below 37 ° C. Immediately prior to ovulation, basal temperature can plummet, and right after ovulation it exceeds 37 ° C. This method of determining ovulation may fail if the woman caught a cold, sick or respiratory viral infections.
Calendar method for determining ovulation
Period of follicle maturation occurs 10-16 days. Luteal phase after ovulation lasts 12-16 days. Accordingly, ovulation occurs 12-16 days before the end of the cycle. With this method of calculation is necessary to conduct regular calendar and write to the first day of the cycle.
Pharmacy Ovulation Test
Test strips purchased at a pharmacy, have detailed instructions for use. Within a few days, starting with the 11 day cycle, a woman should conduct testing. As soon as the reagent will show a positive result, during the day ovulation occurs.
The study of saliva
Compact unit easily fits in a purse. During ovulation the estrogen level rises sharply, the chemical composition of saliva changes. Test under microscope indicates start ovulation accurate results.
US
Determine ovulation by using the method of ultrasonic diagnostics. After the ultrasound the doctor will call the exact date of release of the egg from the follicle.