Cramping At 3 DPO

Before I say anything else, I want to say that I know it’s not possible for this to be implantation cramping. That is not what I think is happening. I have been cramping since 1 dpo. This happens every cycle. I start cramping at 1 dpo and the cramping doesn’t go away until after my period is over. Has anyone who has ever gotten a BFP had cramping like this? I’m worried it might be affecting my ability to conceive.