I have been using clear blue opk but haven’t got a positive yet. According to the <a href="https://play.google.com/store/apps/details?id=com.glow.android">glow app</a> I should’ve ovulated on Sunday but no lh surge detected. Am I not ovulating? Periods have been regular 28 day cycle since October when coming off the mini pill and they returned. Currently still breastfeeding 13 month old but o thought if I was having regular periods that I would be ovulating and a lh surge would be detected. Confused. Concerned.