Pregnancy vs. Period symptoms

I have never been pregnant so I was wondering if when u are pregnant but its too early to test so u dont know, do you "feel" like you are about to get your period. I never have cramping or tender breasts with my period, but my stomach does feel that certain period kind of way that cant be explained. My question is do you still have that "period feeling" if u are pregnant. I am just trying to pinpoint early pregnancy symptoms. It is 6 days before my period is to start and I dont have that "period feeling" yet but it may be too early.. I am just hopeful thinking.....fingers crossed. Thank you for all input.