Are you concerend about possible fake pills available online?
or you are concerned about pregnancy inpsite of being on pills?
Please provide more information.
i want to get my wife pregnant so i want to switch her pills
There are fake pills available on line but it is illegal to give even your wife something like that against her wishes and awareness and you could end up being in hot water as a consequence.
Instead of giving her fake pills, just counsel her at your own or with family therapy to convince her not to take birth control pills so that she can get pregnant.
Again I will not recommenn you to try for fake BC pills because apart from ethical and legal issue, no one knows what is in those and if someone gets pregnant, then chemical in those fake pills can cause genetic problems or birth defects in baby.