Hi Adebimpe...Ovulation typically occur about 14 days before the next menstrual cramps.
The Ovulation day and the first 5 days and the last 4 days together are called ovulation periods. The best time to try and conceive is during the ‘fertile window’ of the menstrual cycle; this is different for different women.The fertile window begins five days prior to ovulation, and ends the day after an egg is released

For example, if your menstrual cycle is 28 days and the first day of the menstrual cramps is December 2nd. Then, the next menstrual cramps is on December 30th (i. e 28 days December 2nd), and then from December If you subtract 14 days on the 30th of December, December 16th is the day of ovulation. Ovulation day and the first 5 days and 4 days later, that is, December 11-20 are ovulation period.

Check here https://babymigo.com/ovulation-calculator