Weird ttw symptoms

Starting around 5 dpo I was having cramps, especially on one side. Lasted a day, then a feeling of a full uterus hung around for a couple days. At 9 dpo, when my CM starts to dry up, it reved up and so did the feeling of my boobs being full and tender. The next afternoon, at 10 dpo, I had what I believe was implantation bleeding and still crampy on and off. AF was due to start 2 days ago and never started. My CM is still excessive and exhaustion has set in for the last 2-3 days. It feels like a job just to get dressed 🥲. Lastly, as of last night, I’m feeling very achy all over and Still no energy. My temperature is slightly higher than normal too..99.6. Anyone ever had these same feelings before bfp? I took a test yesterday which I thought I saw a faint line and todays lines looked the same as yesterday. I know sometimes hcg doesn’t double for a few days or it can take a few days for the test to detect hcg if pregnant. Thank you for any input.