How many days does ellaOne delay ovulation?

Good morning. On the 9th day of the cycle (August 17) I took the ellaOne tablet (about 12 hours after intercourse). According to the calendar, it was the beginning of fertile days, I will add that my cycles are very irregular (the last 2 were 22 and 33 days). Does the tablet affect the postponement of ovulation? If so, how many days more or less? I will add that I try to take Castagnus every day.