Help please -

Af showed on the 1st. (A couple days early) yesterday (the 3rd) , my period stopped for about 2 hours then I started bleeding again. Ever since last night i haven't bled. A normal cycle for me is 6 days and I should've started on the 3rd not the 1st. I also had no symptoms this month besides my boobs being heavy. Normally I have cramps , my vagina get super uncomfortable, etc. I had nothing.

What could this mean ? Could this not be my period ?