Am I starting my period soon? Or pregnant?

I haven't been on BC this month. I believe my last period started on May 14th. I obviously can't test yet so I need opinions. During my typical period I have insane cramps the day before my period and then it starts. This month I started having cramps last Sunday, not too bad, just mild and they have been off and on, which is weird since I only usually have them one day before I start. My have also been KILLING me, I have only had sore before a period once before, so this is odd. They hurt so bad I can hardly shower or wear a bra. They also look a little different to me, like it I have little bumps around them and they are almost always hard. Also, was very painful last night, I felt almost swollen at my cervix. What do you think? Period or Pregnant?