Did i have implantation bleeding?

Cristina
So my fertile window was from the 7th of nov to the 13th, i was spotting from the 18th to the 21st and since then my CM has increased. And i am supposed to get my period today, so far i haven't had any PMS symptoms other than tiredness, I dont wanna get my hopes up...but i have been wanting to take a test. What do you guys think?