Clear blue vs LH strips- getting different results?

[HopingForBab]

Hello all! I'm 37 and trying for baby 3. I have PCOS and needed IUI to conceive first two. Trying to do this one natural. I'm getting false positives on the clear blue monitor and then when the LH strips are positive the clear blue is negitive? I'm confused....anyone have this problem? I'm also temping so I know it's giving false positives. I know PCOS can throw off the OPK but They have been accurate in the past.

 

[LuvallmyH]

Last cycle I got a + digital opk on cd13. My strip test was clearly -. I kept up with them and they turned + cd15 & cd16 & the digital was -. I did O cd16. This cycle they were both + cd18. I am skeptical about the digital as I have gotten mixed results with them. I will continue with the line tests if I still need them.