How early can a pregnancy test detect pregnancy?
The very earliest a home pregnancy test can detect a pregnancy,
is 6 DPO, or 6 days past ovulation. However, some babies will not
implant until as late as 10-12 DPO, which in that case, a pregnancy
test would not be able to detect a pregnancy until after the period
is missed. For a pregnancy test to be able to detect a pregnancy,
the baby has to have implanted into the uterine wall, so that hCG
can be produced. HCG can be detected in the blood before it can be
detected in the urine, so if you really want to know if you are
pregnant, you might want to get a blood test done by your OB.