Which ones?

Hi ladies so I’m about to get my period on the 14th, I tested this morning and it was negative. I know it’s still early so I will be testing again in a few days just to be sure. Although with my first I tested five days before my missed period and I got strong positives, so I believe I’m out this month. However if I end up not being pregnant what Ovulation kits do you find the most accurate? I would like to start tracking my ovulation this coming month. Thank you.