evidence: There is no scientific explanation of how home salt pregnancy tests work. Many users on the internet say that the pregnancy hormone hCG in the female’s urine reacts with salt, causing the mixture to change the texture or curdle. But there is no evidence backing up this theory, and no specific reason why salt and hCG would cause such a reaction. [...] The salt pregnancy test is not believed to be fully accurate. It is more like other DIY pregnancy tests, which are not reliable either. There is no reliable evidence, either from studies or by major medical organizations that suggest that the salt pregnancy test can accurately tell you if a female is pregnant or not. Moreover, there is no evidence that salt itself can possibly detect or react with the pregnancy hormone hCG in the female’s urine. [...] - What a positive salt pregnancy test looks like- As per various sources, a positive salt pregnancy test is supposed to be milky or cheesy in texture and appearance. The claim is that the salt reacts with the hCG hormone present in the urine and blood during pregnancy.