Could it be period cramps?

I had a d&c a month ago and had sex before it and 2 weeks after. It was never protected. He didn't pull out before my d&c but after I was healed he started to pull out. I've been feeling crampy, I'm not sure if it's my period coming or if by some crazy miracle I could be pregnant again. My boyfriend didn't want the baby but I grew so attached and was so excited to be a mom. When I told him the baby died he was very upset about it, I think he was starting to come around.