Lower Abdominal Cramps

Jessica • 35, ttc
Hi there! I am TTC for almost a month. I am 6 DPO. I'm already experiencing cramps every other day since my Fertile Window ended. I don't think testing as early as now will be helpful cause maybe I'll just get a Negative. I'm thinking, if I'm just having a PMS, it's also too early cause i get my period every 3rd week of each month. Any ladies out there who is experiencing or have experienced cramps too at this early stage? I need your thoughts. Thank you!! 😊😊😊