Pregnancy symptoms but BFN?!

so last period was dec 29.

-feb 1st to feb 4th I had light brown spotting only on and off when I wiped

-feb 3 I got super nauseous and had that watery feeling In my mouth/dizzy at times

Ever since I've had that stringy stretchy clear CM and if not that it's really milky creamy (not like the normal drier kind)

I've had a couple times I've gotten dizzy but very briefly

I'm tired but can't tell if moreso than normal but kinda feels like it but don't know if I'm just thinking about it now. Very vivid dreams the past week

-yesterday my nipples hurting and still hurting today.

I still am am getting a BFN. Should I count that spotting as my "period" or could I be preg but not enough HcG levels?