I'm solo confused

so during the month of October I got my period early or what I thought was my period. it was due the 28 but I got it maybe 2 to a week earlier and during that week it was brown then turned into a light pink and I could wear liners for the most part and it only lasted a good 2 to 3 days and my normal period last a good 7 days but now im 6 days late because I didn't get my regular period the 28 what should I do. or what's going on?? any advice would help