im new to this so i'd like to know what your guys opinions are?

first off my breast were very very tender right before i started my :period: on 31st of july. it started off lighter than usual, the 2nd day it was a little heavier had light cramps but then stopped started spotting the 3rd day . (pink) only when i wipped.  i've noticed now that i've had little cramps here and there and that when ever i move a certain way or stretch it feels like my lower stomach is tight. like muscle tight i dont know how to explain it. . i've been very emotional, and tired and been eating more than usual.. i was think ing that i would wait til about the 11th of august to take a pregnancy test..

let me know what you guys think?