8 dpo. Sore breasts. Cramps. BFN. What is going on?

B🌺

I could not wait so I started to test way to early and now I am starting to lose hope. I am 8 dpo, had a few twinges here and there and started to cramp. Yesterday my boobs became sore. I tried to test again this morning and BFN. 😔 Do you think it is still early or do I feel my period coming? 🥺😔