Ttc for over 16months. For medicine?

Married Life 4.5yrs. My hubby is 35 and i am 33. We conceived normally 2yrs back within 3months of trying but i had medical abortion at 22weeks due to cervical insufficiency. Baby was healthy. Now we r ttc for past 1yr 4months. My all reports normal. ovulation tracked and cycle is normal. Hubby sperm count 70m pm. But motility 28% with 72percent static. he is non smoker and non alcoholic. but has stoné  in kidney and gall bladder diagnised last year. sugar n all normal for both if us. he Was put on lineator and Coq from past 4months but still could not conceive. Can't visit dr now. Can anybody plz advice what changes we can do or any more supplements for both of us. I am worried bcz of our age. Any natural ways and dietry help is welcome plz advice. what power medicine he should take l. any changes suggested for medicine? plz help.