The 26-day menstrual cycle is also the 11th day of menstruation, which is equivalent to the next menstrual period 14 days ahead of the ovulation period. Under normal circumstances, if the egg can not be combined with sperm in the ovulation period, the ovary after the formation of the corpus luteum survival period of only 14 days, according to this method can be deduced from the ovulation period. If a woman wants to get pregnant, it is best to have intercourse during and around the time of ovulation, and the chances of getting pregnant will increase. At other times, since ovulation does not occur in the ovaries, pregnancy will not occur even if you have intercourse. Ovulation is susceptible to a woman’s mental and psychological factors, stress, and so on, and can also occur early or delayed ovulation. If you want to detect the accurate ovulation period, you can do ovulation test paper and dynamic observation of ultrasound, comprehensive judgment is more accurate.