Hi, My Name Is Kerry. I Had My Period On

hi, my name is Kerry. I had my period on the 5th - 9th of October. I was intimate on the 9th - 11th of October. my next period is to start on the 2nd of November.

However, on the 17th of October I started spotting, it stopped on the 28th of October, and started again today the 30th of October. this is weird for me, can u tell me what's happening to my body.