I had an abortion couple months ago now I am trying to get pregnant for 3 months with no luck. Bought ovulation kits and no results am I not ovulating?

Probably not. Most people ovulate soon after abortion or miscarriage. 3 months is certainly enough time for you to resume ovulation but if the ovulation predictor says "no" then you probably aren't. If you continue not to ovulate you may want to see your gynecologist.