so last night my fiance asked why I didn't start anythin anymore. he asked if it was because I am…

so last night my fiance asked why I didn't start anythin anymore. he asked if it was because I am losing my sex drive. all I could tell him was mostly I don't because it hurts my back so bad. but then again my mom told me earlier yesterday that her, my grandmother, great grandmother, and great aunt went through the don't touch me phase. but she told me that they hated sex. does this mean that eventually I will to?