super duper tmi!!!

Addison
Okay I ant opinions. Earlier I had a tiny bit of discharge/blood that was really dark brownish red. And now I have this. Do you think it's implantation bleeding or my period? 
Some more info:
My period is completely random, so I'm not sure when I'm ever supposed to start. 
The last week my vagina has been CONSTANTLY wet and drainy, really thin watery discharge.