The sensitivity of home pregnancy tests is lower than blood pregnancy tests. HPTs can usually detect pregnancy 6-7 days after embryo implantation. In certain cases, it can be detected as early as 2 to 3 days before you miss your period, though rarely.
However, this is variable and in fact can lead to false negatives if the test is taken too early. If your body has not started producing hCG yet, you may get a false negative result.
Read the full article on: What Are Normal hCG Hormone Levels during Pregnancy? ( 69).
Andrea Rodrigo
B.Sc., M.Sc.
Bachelor's Degree in Biotechnology from the Polytechnic University of Valencia. Master's Degree in Biotechnology of Human Assisted Reproduction from the University of Valencia along with the Valencian Infertility Institute (IVI). Postgraduate course in Medical Genetics.