I am a bit confused on OPK...wondering if anyone has had similar experience.
My normal cycle has been 26 days for the last year and half. I was using opk's early on in TTC and I was getting positive on day 12 to day 13 on average. I stopped using them for a while due to cost. Well the last few months my cycle has changed a bit one month was very heavy for a long time and then the following month My cycle was 29 days and very light. So I decided to use OPK again. Well I started testing on day 9 and now I am on day 17 and I never got a positive. Its the Walgreens digital, so it says YES LH or NO LH and I have gotten all no's. Any advice ladies??