I think it's a still a bit early to be testing, a BFN is a slap in the face because you have to be hopeful to get the test out in the first place
It's kind of funny how you seem to be doing the exact same thing as me.
I wrote out a whole journal entry comparing myself to a symptoms list but decided not to post in the end in case i ended up with egg on my face
1. Implantation spotting - too early.
2. Fatigue - yes.
3. Frequent urination - no
4. Morning sickness - no
5. Breast changes - maybe.
6. Cramps - yes, but more like ovulation than period cramps as described.
7. Food cravings - i crave food, nothing specific.
8. High basal body temperature - i seem to feel warmer, but i don't chart so maybe not.
There was other things in the list i found such as bloating which i have.