Opk's after miscarriage

Anzel 🇿🇦 • Happily married with a beautiful little girl (2019) 🥰 and four angel babies (05/2016, 05/2020, 10/2020 & 09/2021).
Hi ladies
I need your help. 
I had a miscarriage and D&C on the 13th of May 2016. Bleeding and spotting stopped by the 18th of May. We are TTC again immediately. 
I started taking OPK tests on 23 May - CD11 (Calculated day of miscarriage as CD1). It is still negative. Any thoughts? Dis I miss ovulation? Still too early? Not going to ovulate??