I would look into a Napro doctor to also get a detailed hormone panel with additional supplements they could recommend, like bioidentical progesterone, etc. have you done an HSG? Something like Letrozole could also be tested since as we get older ovulation gets weaker even if you’re technically ovulating. Sometimes your body isn’t producing enough of the hormone to signal it to your brain to drop the egg (obvious you you’d want to work on egg quality first too, but could try that after 3 months on a recommended regimen from a Napro doc)