<s>[INST] my period came a week a half late so i decided to take a pregnancy test and they came back positive then i went to planned parenthood and they said that i was pregnant but when i went to my school health center a couple of days later and the took a urine sample and it came back negative then took my blood and my HCG was an 8. Could i possibly be pregnant [/INST] Your first test was wrong because your bld levels are low. urine tests can never be negative if once positive.  It means your first test was false positive. </s>