I had a tubal ligation a year ago ... He burned and cut them.. and over time my periods got really heavy and I had really bad cramping. Also nausea before each period. My doctor decided to do another surgery and remove and scar tissue that had developed and also cauterize more so my period wouldn't be as heavy. But is has been over a month since then and I have not had a period but I'm having the really bad cramping. I went for my post op appt and they did a pregnancy test and it was negative but I wasn't able to see my doctor because he had to leave and I had to re schedule . I don't know what could be causing this but the longer I go without having a period my cramping is getting worse and I'm getting worried .