Last night I masturbated (with a toy) and this morning I woke up with period like cramps and spotting. I have read that it's a bruised cervix. These cramps were hurting me really bad so I took some tylenol and waited a couple hours and the pain isn't terrible. Just aching. Still spotting too. I thought I had started my period because I start soon but my flow is rather heavy and this is just spotting. Is it just a bruised cervix?