I need help

Rebecca
I need an answer for this I might be prego but Idk cause my period is suppose to be next Tuesday augest 9 but I'm getting symptoms like sore boobs increase of white discharge cramping nauseous headaches and if I dont eat I feel light headed and sick I never felt that way until now me and my bf had it on all the days I was ovulating so am I by the sounds of it and when should I take a test for it to be postive enough to show and I had no implantation bleeding but can I still be without it???????