Well, I had gone through two valves replacmennt 18 yrs back and now got married for 2 yrs. but I wife could not get pregnant. I am wondering and worried if this happen because of my surgery and the medication I had been under because of my problem. Can anyone suggest a bright ideas on these problem I am facing now. The medication I am under are lanoxin, cordarone, calaptin, warfarin for about 15 yrs. now.