What is the ovulation period for menstruation coming on the 26th?

26 to menstruation, ovulation period is normal in the next month 7~16, such a conclusion is based on a 30-day menstrual cycle, as long as the menstrual cycle is fixed, ovulation date is basically fixed. For women with a menstrual cycle of 30 days, the normal time of ovulation is in the 16 days of the menstrual cycle, the menstruation coming on the 26th, so the time of ovulation is on the 12th of the next month, 5 days before ovulation day, ovulation day and 4 days after ovulation day.