What are the best ovulation test?

Jessica
So what are the best but some what cheap ovulation tests? Also what are some things I can do to help me get pregnant I have been trying to convince for almost a year now I was on the depo for a year and a half. Iv had regular periods 3 months after I got off it and iv done everything thing I can think of. It's really frustrating and I'm beginning to think there's something wrong with me. :( please I need some segestions.