I just got a generic Ovulation Test and it's reading positive I tested because I was having cramps…

I just got a generic Ovulation Test and it's reading positive I tested because I was having cramps and horrible backaches it's been going on for two days. My prediction kits havent been working well so it was hard to pinpoint. I also tried doing it like everyday/every other day and no luck. so how long do I have? Is this my peak then?