hello,we have been ttc for the past six yrs,i'm 36yrs and my wife is 29 yrs,tried a lot with different gynecologists, my wife is having pcos,my sperm count is normal,her left ovary is slightly enlarged,she's been on metformin 500mg once daily for the past 2yrs for pcos,we have tried clomid,and letrozole on several occasions but without any results can she be pregnant?