pregnant or just early?

I have 2 kids already, and i have had some signs that i had with both my kids, my last normal period was on july 2nd and im not due till the 28th, whitch is this saturday but a week.or so ago i had a brown bleeding tjat lastest about a week and it was light bit not like a spotting. with both my kids my first signs were growing but not sore breasts, discomfort in sex, and headaches, and i have all those signs. I could just be imaging it because all my friends and family are pregnant right now, and i do want another one, i havnt been planing on getting peegnant right now, but we havnt been not trying. Im confussed of if this could just be me parnoid, and my period was early, of if it could be implantaion bleeding and to wait out if my period comes or not