First month with these OPK's usually use the ones with the pink strips. Normally 35 day cycles regular from 34-36 days long. 4 month doing OPK's and TTC. Ive always had a normal line progression with OPK's nothing like this. I have taken HPT all negative. So unclear when or if I have ovulated yet. The PM of CD 18 or midday on CD 20 are the ones I see positive. I never get a line darker than control always the same as control. Please please give me insight.