Unusual period

Yadira
So i got my period on july 13th then had sexual intercourse a few times during "fertile days" according to app, then august 8th came and i had light bleeding for two days  then stopped for a whole day and a half then had two days of normal bleeding , i took a test a week ago and tested postive but according to my last period which would possibly be august 8th would mean im 5 weeks but i feel like im a bit longer. I have not gone to the doctor , i have my apt on the 30th .. I feel like my last real period was on july 13th which would make me 9 weeks or so. So my question , is light bleeding and then stopping then heavy for a day or so considered a period? Or was that part of early pregnacy? 
Any answers will help, thanks !