I just found out yesterday that I have PCOS after unsuccessfully trying to conceive for 1.5 years. I was instructed by my fertility doctor to start timed intercourse and to use ovulation predictor kits. Is there a kit that works better than another? I was interested in the first response kit, but I'm wondering if any of you have any recommendations. I do not want to spend over $200 on a testing monitor. Thank you!