If my last period was july 5-10 how can my urine an blood test come back positive for pregnancy but i didnt have sex in the month of july ?

T/C False positive: In very rare cases it is possible to have a false-positive result. In such cases even though you're not pregnant the test says you are. Blood or protein in your urine could cause a false positive result. I suggest repeating the test. If it is positive again please go to a medical clinic for an exam. I wish you well with your health!