Faint OPKS

Has anyone Fallen pregnant with faint OPKS?
I have been testing for 6ish months and the line is never dark around ovulation just very faint...I've been tested by my docs and all my bloods came back fine....is there anything more I can do?
I get cervical mucus (feels like I've wet my pants some times lol) and that's a sign for me that it's coming, but is that enough? When should I BD after the CM
I'm 30, almost 31, been with my husband 10 years, feel pregnant when I was 20 chose not to go through with pregnancy as we were only dating for 9 months, little did I know....x