Should I test?

11 days before AF was due I received sore/feeling bruised breasts (which I never get before AF) I've now missed it by a week today.. I've still got heavy boobs but not as sore. I've cramping, lightening crotch every now and again, headaches, constipation and tired after about 2-3 hours of waking up.. Could this be my month? Anyone else have these symptoms in first trimester?