Confused

Hi all

We started ttc from june 2019 but last month i used opk for the first time. I have a cycle of about 24-25 days. Last month on cd11 and cd12 i saw faint line on opk with control line. From cd 12 i started taking 1 prenatal tablet and 4 1mg folic acid tablets.

I have not seen any second line on opk ever since i started taking folic acid tablets as suggested by my doctor.

From cd 7 till cd12 there is only control line on opk. All this is so confusing. Am i doing something wrong? Can someone help or advice.

Its so difficult just after starting opks i am not seeing any ovulation thing on sticks

Thanks a lot.