Cramps

Hi guys I don't think I'm pregnant I'm
Sure I'm not I had a D&C on the 14/12 and I yet haven't got AF back yet and I spoke to my on last week (not on this though) today on and off all day I have been getting these cramps where it kills me I never get pains never have with a period ever before. I'm
Going Google crazy! Can someone help me please as to why I'm getting these please I haven't yet got my period after my D&C yet.