I Was Suposse To Get My Period One The Dec

I was suposse to get my period one the dec 19 which i started to bleed but the next day it was just spotting and it was jst that but on and off and alot of brown discharge i been drinking cinnamon tea for 5 days now and been eating oranges and also been taking ibprofun200 mg 6 pills a day it have not seen any result of cramping just alot of lower back pain does that mean im not pregnant? This month which is jan i should be getting my period this weekend should i just wait?