Hi! I Have This Feeling That I Am Pregnant But

Hi! I have this feeling that I am pregnant but I tested negative with a blood and urine test. I am about a week and a half late for my period but still have this feeling that I am pregnant. some symptoms I have been having are dizziness, cramping in my lower stomach, feel bloated, have been getting out of breath easily which is not normal for me, and frequent urination.