M.
Clearblue Easy digital is the way to go. They are $39.99 and you get a week or so worth of test strips. If you ovulate at all regularly you can make one kit last for 2-3 months. I think they may be cheaper online.
I tried a cheaper one once and could not make sense of the strips. I couldn't tell when I ovulated. Clearblue Easy is super simple. I was a fertility patient for almost a year so I used these a lot.
Good luck!