I stopped taking BC at the end of June and my July period was 6 days late. I wasn’t pregnant so I assume it was hormonal imbalance from coming off the BC. My period came on July 30th so the app says I should ovulate in two days (14 days after start of last period). I’ve been taking OPKs for the last three days but each day the test line is getting lighter. Does this mean I already ovulated and my levels are decreasing? Or does the faintness of the line on an OPK not matter? I’m confused since I expected my ovulation day to be later than the app says since my last period was late..