False Negative Pregnancy Test. Most women will agree that pregnancy test is the greatest or at least the most useful and convenient humankind’s invention. Only one dollar or two, a few minutes, in any place, anytime you can get the answer to the exciting question: pregnant or not. Could our grandmothers dream about that?! In general, pregnancy test is, undoubtedly, the thing! Nevertheless, it has one essential disadvantage: it quite often gives false result. In addition, in most case it is false negative – when pregnancy in fact is, but the test gives false result.