My mom thinks I'm pregnant, my dad had a dream I was pregnant and so did my friend of 7 years. In October I got my…

My mom thinks I'm pregnant, my dad had a dream I was pregnant and so did my friend of 7 years. In October I got my period November I didn't. And I toke some pregnancy test from the dollar store and they were negative. I got my period for 5 days December first til 5th my period is normally 7 days is it a possibitly I could be pregnant?