Ttc not working

I’m on my 9th month of ttc. We bd every single day of fertile week until ovulation and it’s not working. Any suggestion / help pls??

I do use opk and confirm ovulation as well. So I know I’m doing it on day of ovulation. Should I do after ovulation day as well?

Ob gyn suggests 1 yr of trying on own. But, I’m so impatient , this entire year went in ttc!!!