Ok so I bought some cheapies from amazon and haven't once got a positive opk (or even a faint line). I've been using them for about 3 months now and even tested every day of my cycle that I wasn't on my period and still nothing. Here's the ones I use.

Have any of you had the same problem not ever getting positive opks? I'm wondering if it's worth paying for a more expensive brand. I have no problem paying the money if I can actually detect ovulation. But I'll be frustrated if I buy them and I still get nothing.

Stupid PCOS. I feel like our BDing timing is what's keeping us from conceiving so I really want to pinpoint ovulation to help a bit with that. Suggestions on OPKs that work for you ladies with PCOS would be appreciated!