Understanding Ovulation and Menstrual Cycles: Timing and Variations

Question
In a previous question, you emphasized that menses always came 14 days exactly after ovulation...I have read elsewhere that it is 12-16 days. Can you clarify on this point? If it is longer than 14 days, what are the circumstances that this may occur?

Answer
Since every women is unique, they were merely giving the ovulation date with a standard deviation of + or - two days. However, ovulation always occurs fourteen days  prior  to the first day of your next period. First you count  three months of periods to see how many days there are in your cycle. Then  count backward fourteen days (from  the first day of your period) and that is the day of ovulation.