I need help please!!!!

Sunny
Ok y'all, I am 6 days past when my period should have started, I have ZERO symptoms of my pre period, like I normally get bloated and sore breasts.... none of that, but I took a pregnancy test and it shows negative .... is it possible I'm pregnant and it's just not showing pregnant yet?!  If so when should I retest? Also how probably is it?!