I'm going to second the recommendation for evening primrose oil and also add to that grapefruit juice. When I was using evening primrose oil alone I saw a good increase in fertile fluid. When I did them both it was almost unbelievable! You only want to use the evening primrose until ovulation if there is a chance you are pregnant. I did the same with the grapefruit juice since the only point was to get ewcm anyway.
Charting is great and helpful to know when you ovulated!
As for acidity, you could try eating more alkaline rich foods, and stay away from acidic foods Surprisingly, lemon juice turns to alkaline in your body so it is good to drink water with lemon. Lots of water in general is good.