TTC baby #2 after BC

I finished my pill pack at the end of January, had my "withdrawal bleed" and have been ttc ever since. My af was late February by 6 days until I finally got it again. Now I am trying to figure out my cycle length so I can track my ovulation but without a lot of data to base it on, I'm having trouble. Any other women have this issue? Did you use ovulation kits or just try a few times a week and hope for success? How lucky bf did it take you to conceive after discontinuing BC?