Femera 5mg. Long Cycle.

Ems

So we have upped the dosage from 2.5 mg to 5 to try to hyperovulate(I was ovulating regularly on the 2.5 at CD 15-16). This cycle I kept getting almost positive opks, so I stopped testing around CD 26. Fast forward to CD 41... very positive opk, lots of ewcm and no bfp. So confused!! Anyone experience this? Should I start to BD again or would it be a false positive?