Ovulated but bfn!

Sarah • 27 year old medic from malaysia, dreaming of cute toddlers and greener pastures ...
Hi ladies..i just wanted some feedback, if u guys could help out?
So i had a postive opk with clomid on cd14 but now its cd46 and i still havent had my AF..tested 4x its all been a clear BFN.
Was my opk a false positive? If i dont get AF does it mean clomid didnt work for me this cycle? Pls help, thanks in advance..