Suggest Medication To Stimulate The Ovaries To Conceive

Hi. My wife has taken CLOMID for several times during her menstrual cycles? However, CLOMID only had an effect when she took a double dose two years after our marriage. But she had a miscarriage only three weeks later. She tried CLOMID again, but the system did not respond adequately. She later took OVACARE for about two months, but no response was there. Is OVACARE better than CLOMID? Or is there any drug that can better stimulate ovaries? My wife and I got married six (6) years ago. We never had children, but the spermogram test shows that I am healthy. Thanks