My last period on 19/3. when is my most fertility days n ovulate day? my cycle is 30 days. but last nth its 34 days.

Ovulation: Based on a 30-34 day cycles, you may ovulate on approximately days 15-18. This is your most fertile time. To be more accurate regarding the timing, you could try ovulation predictior kits (opk). You can start testing daily on the 10th day of your cycle until you see a positive result. Intercourse for 3 days can be initiated on the day of positive result. Opk will pinpoint your fertile window.