Pms symptoms 4dpo, but bfp later???

I always start having cramping and bloating about 9-10 days before my period starts. I am 4dpo and I feel like I am starting to have these same symptoms, and it is really getting me down. I know it is too early for pregnancy symptoms. But are these symptoms due to progesterone rising? Would you have these symptoms either way since your body doesn’t know if you are pregnant or not before implantation? I hope this makes sense. I’m just trying not to lose hope so soon in my tww. Has anyone ever had this experience?