Spotting? AF? Implantation?

Alexa
I have a pretty regular period always 5-6 days. This time it was early BUT the first day it was light pink like spotting then a little heavier for one day then stopped today & reverted back to light pink then nothing?  I'm confused. It wasn't heavy enough to be a period. I don't know I have almost every symptom too. Nausea , sore breasts , fatigue , food aversion , moody & etc.