Still no period hoping it's my month

Betsy
My LMP was on 6/3 according to glow I was suppose to start on 7/8 which is a couple days off from my period but anyways still no period just cramping here and there and no brownish discharge like I usually get when I am about to start 
I want to wait a little more before testing because me and my husband have been having sex almost every day and I heard that can make your periods off track