The more I look at it the more I feel like I may have miss calculated ovulation. This is our 2nd cycle TTC and first time using Glow and Ovia this cycle. I first bought OPKs on my CD7, I was low. Next day on CD8 OPK was high, and the following day OPK was at peak and had EWCM. Is it normal for OPKs to jump that quickly? I usually have abd. pains around ovulation, and felt them both sides on Sunday CD10 along with terrible back pains. Then on Monday, just on my right side I had pain. Some <a href="https://play.google.com/store/apps/details?id=com.glow.android.eve">period apps</a> say I ovulate today, but I think I could have ovulated Monday CD11, but maybe even as early CD9? We BD’d CD’s 8, 10, and 11. My cycles are usually 26/26 days long.