 [ Symptoms ] had sex roughly 12 days ago wife took pregnancy test on the 12th day it was positive period isnt due yet can it happen im a truck driver gone for months at a time i got home on the 13th of june wife said she was having symptoms of pregnancy the 10th day that i was home june 23rd she took a pregnancy test and it came back positive her period is not due for another week or so basically wondering if you could get a positive pregnancy result after only 10 days on home test [ Disease ] pregnancy tests can detect a baby very early now what it does is detect hcg in the woman which is a hormone that is present during pregnancy it is rare for a pregnancy test to have false positives a pregnancy test can have a false negative if the hcg hormone is not yet detectable