I started doing OPK testing on CD 6 and 7 but both were negative so I figured I was testing too early. During CD 6 & 7, I had moderate EWCM and very light EWCM on CD 8 & 9. I started OPK testing again on CD 11, now on CD 15 I am still getting consistent negatives (the is absolutely no second line). I am fairly new to cycle monitoring and OPK testing so am wondering if it is possible that I ovulated on CD 8, 9, or 10? Based on the first date of my cycle, I was predicted to ovulate on Aug 2 but when I put the negative OPK results into Glow, it pushes back my ovulation date. I am just feeling very confused!!