Hello, I have given birth four months ago to a lovely healthy boy. My six week health check was fine. Five weeks ago I had the rod inserted in my arm for contraception. Two weeks ago I received my first pap smear and tests came back abnormal. Last week I had taken a pregnancy test to confirm as advised by my gp which was negative. I have now had my period for the first time since the rod was placed in my arm and I had terrible pains slightly worse than normal and had a grey lump/tissue come out during my period. Any ideas please?.