This is simply not true. Even though the timing of ovulation can vary from cycle to cycle, once a woman ovulates, it is virtually impossible for her to ovulate again until the following cycle. This is because once ovulation occurs, the hormone progesterone will suppresses the release of all other eggs until the following cycle.

Even in the case of a multiple ovulation, the eggs are released within 24 hours of each other. During those 24 hours, one or more eggs will be released, and then no more until the next cycle.