Does human home pregnancy test work for your mare horse?

No. A human home pregnancy test will not work for a mare horse. Human home pregnancy tests are designed specifically to detect the presence of human chorionic gonadotropin (hCG), a hormone produced by the placenta during pregnancy. Horses produce a different hormone called equine chorionic gonadotropin (eCG), which is not recognized by human pregnancy tests. Therefore, a human home pregnancy test will not be able to accurately detect pregnancy in a mare horse.