Can blood and urine tests be wrong and still be pregnant? i have all the symptoms and im still cramping. ive been cramping for almost a month now.

Not likely: Did you have unprotected sex? Did you miss a period? If the answer to both is yes, do an hpt about a week after missed period. Alternatively you could see your doctor for a blood test which is more sensitive. If the hpt is negative, re do it in 3-4 days. Use first morning urine and follow the instructions for the test carefully. If you do not wish to be pregnant, use contraception all the time, every time. You may consider implanted contraceptive, or IUD. Practice safe sex.