I think I may be pregnant, but my home pregnancy tests are negative. I cane on my ministration 8 days early with out a warning. I always ache in my legs when its time. I have a pencil line coming from my navel to my rib cage that was not there my breasts are hurting on and off I had sharp pains on the right side of my lower stomach then it moved to the left now I'm having sharp pains through my navel. My lower back hurts and across the top of my butt and I never had this problem . I have been tested and I don't have any infections or STDs not bladder not none I have had every test you could run accept a blood test .the hospital said when the urine test is negative they don't do pregnancy tests. Help me I feel crazy..