Could anyone tell me if femara can increase risk of ovarian cancer like clomid,as im worried with me already been on clomid for 12 cyles.

Is it okay to take femara after 12 months of clomid,as isnt it a very similar drug,only it works on the ovaries and not the pituitary gland??

I tried ringing my pharmasist for questions but there hopeless,i just dont want to do more harm than good.