Hi Sir I'm 29years Old Man My Wife She Was

Hi sir I'm 29years old man my wife she was 25years old .we get married before six years.imafter married in 2,3months she was pregnant but unlucky that baby was miscarage after treatment we take out the baby and that time Doctor told me that for another baby just gave gap about 2years now it's already about six years so we want baby now in that period I'm always using condoms we try for baby but there no any symptoms so what is the solution for that?